fighting the high stakes, black market trade. thanks for joining us. police in hong kong have been cracking down on protesters. thousands of tents have been set up in the so-called democracy village. you can see it is calm now, but just a few hours ago police with riot shields removed some barricades built by protesters before withdrawing. ivan watson was there when police first moved in on protesters overnight. >> reporter: just a sccouple meters from where 6 standing now, police appear to have pushed in to this highway now and are clearing the demonstrators out. there's scuffling going on, and at this point we can see the demonstrators being pushed out. this is moments, moments after one of the main student protest leaders announced, vowed that the protesters would continue to encircle the government headquarters, to force the government, as he put it, to give in to the demonstrators' demands. >> now it's worth noting this is the boldest move the authorities have made in nearly two months. ivan is back with us, this time live from hong kong with the latest developments, and ivan, it is the deepest incursion of police into the protest area since the demonstrations began. why did they move in this time and what's the likely next move of police there in hong kong? well, i have to correct that. the police did not move in to the main encampment. what they did was moved against demonstrators who tried to move beyond the encampment to barricade entrances to the main government headquarters. this appears to be an example of that. and what we saw overnight was basically, within a matter of hours after demonstrators had succeeded in pushing back some of the police and occupying a highway, then the police moved in with batons, with pepper spray and succeeded in routing the demonstrators really in a matter of minutes. as for the main encampment, it is still very much here, very much in hong kong's admiralty district. you have the hundreds of tents as well as protesters, and we do not see that the police have made any real move against the main encampment itself. what happened was again, demonstrators whose leader said they were trying to paralyze the hong kong government by barricading the entrances. the police made it clear that that move would not be tolerated and that they ha've shown also, within a matter of minutes, they can clear away thousands of demonstrators and also clear away barricades as well. and they've also succeeded in doing this last week at another one of the encampments that had been in existence in hong kong for some two months. they succeeded in clearing that away entirely. for now, it appears the authorities are still allowing this encampment to remain here. and so the test of wills between the demonstrators who say they want the rules for the expected elections of next year to be redrawn to make them more democratic. they remain here, and the government seems to be tolerating them as well for the time being. rosemary? >> and ivan, what's the likely next move then that the protest leaders who appear to be giving mixed messages right now, are they all on the same page here? >> we've heard about some divisions within the protest movement, that there is some dejection after the overnight attempt to, as they put it, to escalate their pressure on the government appears to have failed. and the longer they sit here, the more we're getting signs that many ordinary residents of this city are growing tired with the protest movement. two surveys conducted by hong kong universities in november indicating that a majority, an overwhelming majority of residents surveyed are tired of the protest movement. they say they want it lifted. it has created inconveniences for people of this city, trying to get to and from work and to go about their daily business. and that pressure seems to be mounting on the protesters themselves. this has been a marathon now, more than two months that they've been encamped here. there have been some aborted attempts at negotiations with the government, but the government really has not capitulated at all. it has not agreed to re-draw any of the rules for the projected elections of the top executive here. and meanwhile, people are, it's difficult to stay out here night after night. so it is a real test of wills that continues. and, again, we've seen two examples within the last week that when the hong kong security forces, when the police want to, they can clear away these protesters and these barricades very quickly. there were dozens of people detained. the hong kong government has denounced what it described as violent radicals and accused them of throwing water bottles and helmets and pepper powder and also of using strong flashlights against the police. and we saw the police using batons and also using pepper spray against the demonstrators. rosemary? >> many thanks to our ivan watson there at the main protest site in hong kong. u.s. president obama has a series of meetings planned monday to tackle the tensions in ferguson, missouri. first, he will talk with his cabinet to get an update on a review of federal programs that fund local and state police departments. mr. obama also plans to meet with young civil rights leaders, community activists and police. he wants to come up with ways communities and police can rebuild trust. ferguson has been torn apart since the police killing of unarmed teenager michael brown. well, officer darren wilson, the man who fatally shot brown resigned from the ferguson police deet over the weekend. he said he wants the community to heal. mary maloney reports on the city's plans to move forward. >> we have now severed ties with officer darren wilson. >> reporter: that official announcement follows a statement from wilson's attorney and a newspaper interview saturday. james knowles told reporters wilson's employment with the city had ended. >> the city will not be making a severance payment to wilson. >> reporter: the grand jury refused to indict officer wilson. it brought protests on the streets that soon turned violent. he resigned after he learned the police department received threats of violence if he stayed on. his letter of resignation said in part, it is my hope that my resignation will allow the community to heal. people in ferguson reacted to the news saturday night. >> he's 112 days late. >> it means that he got away with murder. >> reporter: with wilson's departure from the force city officials are ready to move on. >> now is the time for the city of ferguson to begin its healing process, with the city of ferguson and the police department. >> reporter: but signs point to a community not ready to let go. just before sunday's nfl game on cbs, several st. louis rams players appeared to remember michael brown by raising their arms in the air as they left the tunnel. i'm mary maloney reporting. the st. louis police officer's association criticized those players, calling their actions inflammatory considering the grand jury's decision. also in st. louis, a bosnian man was killed with hammers. members of the bosnian community kicked cars and blocked traffic demanding justice. the victim was attacked sunday morning in front of his family. police say they took two teenagers, aged 15 and 16 into custody. so far they have not released a motive. the pope is now home from his journey to turkey. plus travel nightmares for americans returning home from the thanksgiving holiday. what led to delays at sol of the busiest airports. of the busiest airports. m of the busiest airports. e of the busiest airports. it's more than the driver. it's more than the car. for lotus f1 team, the competitive edge is the cloud. powered by microsoft dynamics, azure, and office 365, the team can gain real time insights and instantly share information around the globe. when every millisecond counts, staying competitive begins with the cloud. this is the microsoft cloud. this just in to cnn. another violent attack by boko haram is under way in nigeria. this time it's in a northern city. social media report the say the fighting is going on near a university. nigeria government television is reporting ongoing gun battles and explosions, and we will of course continue to monitor the situation and bring you any developments as they come in to us. want to turn to syria now. war planes from the u.s.-led coalition are striking the city of raqqah. the northern town is the declared capital of isis. it's the home of training and depots for isis. a sharp increase in coalition activity in the area. the attacks follow several devastating air strikes there last week by the syrian government that killed almost 100 people. pope francis has wrapped up his three-day visit to turkey. throughout the trip, he preached about the need for the major religions to understand one another. he met with religious leaders and christian children who were forced out of the middle east. arwa damon has more. >> reporter: this teenage girl tells pope francis of the horrors of being a christian in iraq. >> we ask you to consider our difficult situation. and what we are expressing is very difficult on us. >> reporter: her story echoing the plight of the majority of children here, mostly christians from iraq and syria, forced to flee their homes under circumstances few can imagine. it was the end of his three-day trip to turkey, but perhaps for him the most touching. the pope appeared tired but also very moved. telling the children not to lose hope, while acknowledging it is easier said than done, when one has been through all they have already and at such a young age. in the last decade, first al qaeda and then other extremists in iraq, then the emergence of isis has seen the majority of christians flee their homes and country, raising fear that if the status quo is allowed to continue in the very birthplace of christianity, it could cease to exist in some places. pope francis was addressing that through dialog, not violence. >> translator: while always respecting international law to stop an unjust aggressor. i would like to reiterate that the problem cannot be solved solely through military response. >> reporter: and the very vital need to build interfaith bridges and trust. briefly praying alongside the mukti of istanbul in the blue mosque, visiting the museum. but where today you will see islamic calligraphy and christian frescos under the same roof, symbolic of what the pope is hoping to accomplish. pope francis came to istanbul at the invitation of patriarch bartholomew. they issued a statement saying we cannot resign ourself to a middle east without christians, and it seems that the value of human life has been lost, that the human person no longer matters and may be sacrificed to others' interests. that is a sentiment we have long been hearing, expressed by people in iraq and syria, not just christians but also muslims, feeling abandoned to violence and a fate over which they have no control. arwa damon, cnn, istanbul. now that egypt's former president hosni mubarak has been cleared of murder and corruption charges, his lawyer says the ousted leader could be released early on his embezzlement sentence. the legal fight is not over yet. >> reporter: vindication for former egyptian president mubarak. he was acquitted for the deaths of people during the 2011 uprising. mubarak's sons and co-defendants kissed their father after the judge presented the 1430-page verdict. this overturns a previous verdict of life in prison. outside the courthouse, families of those killed waited in anticipation. this mother won't find close usual today. she tells me the police killed her son and now his sacrifice will go in vain. millions of egyptians flooded the streets in january of 2011, demanding mubarak step down. security forces responded with a heavy hand. 18 days later, mubarak was gone, but not before more than 800 protesters died, according to the government. human rights groups put that number at more than 1,000. many egyptians blame the president and his interior minister for the deaths. dubbed by the local press as the trial of the century, it gripped the nation for more than three years. while these people who support the former president hosni mubarak celebrate, it isn't over. the prosecution can still appeal this verdict. it's uncertain if mubarak will actually walk free. he's still serving time on another conviction. both sides believe politics influenced the various verdicts. his supporters believe an international conspiracy ousted their beloved president. this former officer tells me after today's ruling egypt is victorious. protesters angry at the verdict took to the streets, their numbers in the hundreds. police eventually disburse the crowd, injuring dozens in the process. hope isn't lost for those egyptians who want to see mubarak behind bars. prosecutors say they're going to appeal the verdict. cnn, cairo. the united nations has missed its goal of isolating 70% of patients infected with the ebola virus by december 1. during the most recent ebola reporting period, only 40% of sierra leone's ebola cases had been isolated. liberia fared worse with 23% of its cases isolated. guinea is the only country to meet the target with 99% of case withes isolated. sierra leone and liberia have completely missed monday's target for safely burying 70% of their ebola dead. sierra leone has just 27% of its burial teams trained and in place. liberia has only 26%. guinea, though, has 83% of its teams trained and in place. in its latest numbers, the world health organization counts more than 16,000 confirmed or suspected cases of ebola in west africa. almost 7,000 have been fatal. the vast majority of these are in liberia, guinea and sierra leone. w.h.o. officials also confirm six deaths in mali but say the outbreaks in senegal and nigeria are officially over. scientists say the first experimental trial of an ebola vaccine have led to good results. it has so far proven safe for humans. we spoke with the director of the national institute of allergy and infectious diseases. skblt proof of the pudding is going to be whether it actually works. that's next step. so sometime over the next months, likely in mid january we're going to do a much larger trial, and many, many more people in west africa to determine if these promising, early results actually spell out to be a vaccine that works. and we won't know that until we test it in the setting where there's ongoing ebola infection going on. and the only place that that's happening is in west africa. >> the trial vaccine includes genetic material from two ebola strains, including the one that is fueling the deadly outbreak in west africa. let's take a very short break now, but still to come on cnn, evacuated towns have become tourist stops. while visitors are streaming through some of japan's abandoned neighborhoods. ♪ ♪ ♪ ♪ travel woes for many americans returning home after their thanksgiving weekend. long airport lines in chicago on sunday, one of america's busiest travel days of the year. more than 3,000 u.s. flights were delayed. nearly 200 flights canceled. fog in denver, colorado only added to the misery, adding airport delays. 90% hit the road for thanksgiving encouraged by the low and the lowest gas prices in five years. he. well, japan's fukushima nuclear disaster has led to a new kind of dark tourism. almost four years after the meltdown, tour guides are taking people through the deserted neighborhoods. cnn's will ripley finds out why one devastated town wants others to witness its tragedy. >> reporter: the first thing people ask about is the radiation. is it even safe to go in when most are kept out. our local tour guide say the contamination levels are low, allowing quick trips into fukushima prefecture, still empty since the worst nuclear disaster since chernobyl. outsiders are getting a rare look at this place, damaged from the earthquake and tsunami sit the untouched. crumbling buildings are falling into disrepair and weeds taking over. would do they say when they see it for the first time. >> at first they say unbelievable. >> reporter: nobody can live here, not yet. fear lingers about the invisible threat from radiation released by the damaged reactors. soil and groundwater is he contaminated. >> what's left? >> nothing. >> reporter: he says these tours are part of a longen-term to rebuild fukushima prefecture. for him, a long, painful task. you're from fukushima. >> yes. >> reporter: what do you think when you look around at all this damage? >> i came here several time, but still, i cannot say anything. just sad. just sad. >> reporter: the nuclear plant is being taken apart. it will take decades and billions of dollars to make it safe. i was there a few months ago, forced to wear protective gear. it's one of the most dangerous places on earth. it's visible in the distance, far to close for any to feel safe again. for many, moving on is easier than facing this. we're standing 2 kilometers, more than a mile from the coast. yet here sits a boat that was picked up and dumped by the tsunami. boats and cars are all over this field, reminders of all the people who died here. akiko prays for her mother and father-in-law. small shrines like this are everywhere. it's been almost four years, she says, and it's so sad to come here and remember that they're gone. fukushima tour guides hope by sharing the plight of these people others will be inspired to come here and rebuild. >> we want to encourage local people for revitalization. >> reporter: they hope this school gym graduation banner still hanging, will have students again. this dusty piano will have someone to play it, and this nuclear ghost town will some day be brought back to life. will ripley, cnn, fukushima, japan. >> extraordinary images there. we'll take another short break. but next here on cnn, the story behind this viral photo. hear from the officer and photographer on why this little boy moved them so much. and an all too common scene in south africa, how park rangers are battling to protect rhinos from poachers. we're back in a moment. and a warm welcome back to you all. we do want to check the headlines at this hour. hong kong police have been cracking down on pro-democracy protesters. a few hours ago, police removed barricades built by protesters. they used batons and pepper spray to push back demonstrators who surrounded government headquarters and blocked another major road. at least 40 people have been arrested. u.s. president obama has a series of meetings planned monday to discuss ferguson, missouri. he's scheduled to speak with his cabinet to review programs that fund police departments. he's also set to meet with civil rights leaders and community leaders for ways to rebuild trust with police. in syria, the u.s.-led coalition has stepped up air strikes against the city of raqqah. observers say at least 30 air strikes targeted the city saturday night. isis uses raqqah for training, weapons depots and barracks for its fighters. those fighters have made strong gains throughout syria and also iraq. right now, isis militants control wide arias west of baghdad, and the iraqi government is determined to keep them from capturing the capital city. jer mauna karachi got a close up look at baghdad's defenses. >> reporter: this is life in baghdad. car bombs, suicide bombs, roadside bombs, thousands wounded and killed. bombs that could strike anywhere at any time. and that's how it has been for more than a decade. still, life goes on in the city. while isis might be right on the doorstep, they are confident they are fortified. >> we capture so many sleeper cells inside baghdad. still working on these cells. sometimes they are having some action here and there, but in general, now there is no fear from the previous times that there will be a plan for baghdad invasion. >> reporter: this brigadier general gives us a rare tour of baghdad checkpoints. >> this is the place to check the cars. we have ied detector there. if there's a sign of any vehicle it will send it on that place to check it by hand and by sometimes by k-9. >> reporter: for years, iraq's depended on this device, now known to be a fake explosives detector, the creator jailed, he was providing a false sense of security and making enormous profits. police say it was a golf ball finder with the label removed. but he says he was not responsible for any attacks. at times the device works. now there are new plans for the capital. within days they'll deploy the newest batch of scanning vehicles. >> they are very modern. >> reporter: by february, the government aims to have these skploesive scanners all over the city with a focus on baghdad's gates. >> we are trying to use a number of these checkpoints on baghdad and getting on behalf of them this rapid scan vehicles. and the civilian intelligence units to be here and there in so many places in baghdad. the police men are searching, for example, the back of the car, if there is a kind of bombs or tools or weapons. and by the way, isis trying to get the benefit from some special places in each car. >> reporter: he says every day is a learning experience for the security forces and the people of this city. >> baghdadian people want to survive. they are challenging any isis anything. we have the will to live, and we will do it. >> reporter: no one knows where the next threat will come from. for now, all they can do is try and be a step ahead. jer mauna karachi baghdad. russia says it is sending food and building materials into ukraine. but kiev is accusing them of using the trucks to transport weapons. ukraine's military spokesman says the lion's share of supplies was ammunition and other equipment for combat. well, russia's president will meet with his turkish counterpart in ankara on monday. they are expected to focus on trade and energy issues. relations between the two countries have been tested by differences over syria and ukraine. turkey opposed russia's annexation of crimea and is pressing for the ouster of bashar al-assad. well, the search for a missing football player for the ohio state university has ended in tragedy. police say the body of kosta karageorge was found. >> there are a lot of questions we are trying to work out. yeah, he was found in the dumpster, the gun was found in the dumb sfer with him. we will be moving that container and him to the county morgue where the investigators will continue the investigation. >> police identified the fifth year senior by his tattoos. the 22-year-old's mother told police her son sent her a text message early wednesday morning, complaining of concussion symptoms. although an appeals court in qatar has cleared an american couple of charges they starved their daughter to death, they're not allowed to return home just yet. matthew and grace won their appeal sunday, but a family spokesman tells a qatar news agency that another arrest warrant has been issued for them onion known charges. u.s. secretary of state john kerry says he's deeply concerned by the delay and says it's time to let the couple return home. >> it's been a very difficult and tiring circumstance. we're tired of the process that seemed like it would never end. the court process was long and tedious and never until today's ruling did we even hear truth from any justice, anyone involved in the court process. and now, again, we're finding ourselves stuck and waiting. while we are promised that we would be ready, allowed to go. >> the huang's sons are being cared for by their grandmother in the united states. it is being called the hug shared around the world. you see a 12-year-old african-american boy sharing a hug with a white police officer in the u.s. city of portland, oregon. they were at a protest there. devontae hart was holding a sign offering free hugs. the sergeant says devontae was upset about the issue of police brutality. then the officer asked if he could have one of his hugs. >> as i sat there with a colleague of mine, we noticed devontae, you know, 10 or 15 feet away from us, and he would turn periodically towards us, and i noticed he was crying, and i looked at my colleague at the time, brian and said is that kid crying? and we just kind of went from there. i said i'm going to call him over and do what i do as not a police officer but just a human being. >> it is a spectacular shot. and the photographer says he was at the protest to take pictures from himself but felt the scene with devontae and the sergeant was powerful and special. >> since the photo has been published, i've gotten hundreds of e-mails and comments on my instagram saying how the photo has made them feel more hopeful. it has restored faith in humanitarian and impacted them greatly especially because of what's been going on. also people have been telling me that this photo is what the world needed to see, what america needed to see and should continue to see. and i think that's partly because of all the photo we've seen in the protest have shown violence, anger to the point of destruction and people have told me how great it was to see ra photo that showed the other side, the humanity. light on a lot of the darkness transpiring throughout the country. >> and it's worth noting this was his first photo. another feet sew sparkiphot criticism. in the photo, elizabeth louten told the first daughters to try showing a little class. and to dress like they deserve respect, not a spot at a bar. now we look at the explosive reaction online. >> i think the story's gained a lot of traction because historically, the first daughters, the first sons of presidents have been for lack of a better word, off limits. they can scrutinize the adults all they want, but there's been a general sense that people don't go after the children of the presidents. it's interesting that this woman is a communications director. she works with the media, speaks to the press and public for tennessee congressman steve fincher. now she in this p.r. nightmare, i would say. and it all started because of her facebook post on thanksgiving. this is something she posted in relative obscurity until an african-american reporter at root noticed t it's gone viral and now there's calls for her to be fired. i'm not sure that will happen. we haven't heard from the congressman about this over the weekend. they may be trying to wait and see if it blows over. but it gets to that point i was talking about where the children of presidents have historically been off limits. that was true for george w. bush and bill clinton. it's one thing to criticize the president as she did that your mother and father don't respect their position very much. but it's another thing to say try showing a little class. that's what sparked outrage in in this case. and people are waiting to see what the congressman's going to say. we'll take a short break. but south africans are battling rye know poaching. could protect you from cancer? what if one push up could prevent heart disease? one. wishful thinking, right? but there is one step you can take to help prevent another serious disease- pneumococcal pneumonia. one dose of the prevnar 13 ® vaccine can help protect you ... from pneumococcal pneumonia, an illness that can cause coughing, chest pain, difficulty breathing, and may even put you in the hospital. prevnar 13 is used in adults 50 and older to help prevent infections from 13 strains of the bacteria that cause pneumococcal pneumonia. you should not receive prevnar 13 if you've had a severe allergic reaction to the vaccine or its ingredients. if you have a weakened immune system, you may have a lower response to the vaccine. common side effects were pain, redness, or swelling at the injection site. limited arm movement, fatigue, head ache muscle or joint pain, less appetite, chills, or rash. even if 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as the drugs kick in. the rhino is darted with a mix of immobilizimmobilizer. and it takes three to five minutes from the time it's hit to get it on the ground. from that point on, the process is incredibly fast. oxygen tubes to help with breathing and it is microchipped. dna samples are taken. >> you can actually take a piece of the horn and link it. >> reporter: and another shot to reverse the drugs. we have to make sure that we don't get in the way. the team haul the rhino to its feet, and it takes the few ginger steps towards the trailer which will carry it to safer ground, in a more intensely protected zone in the park. this is why. just a few miles further north, a rhino carcass lies where it was shot some ten days ago now. they have such a backlog of cases it's taken them till now to get here. this was a female rhino. she was pregnant. the fetus, like the rest of her, long picked away by scavengers. all that's left, the squkeleton and skin and a hole where the horn once was. they find the bullet which killed her, but the scene is too old to find out more than that. >> we suspect that they shot it from over there in mozambique. >> reporter: they share a border with mozambique. this shabby wiring all that separates the two countries. it is no deterrent, when rhino horn can catch of huge prices in places where they believe rhino horn can cure diseases like cancer. it is estimated there are 15 poaching groups in the park at any one time. >> if i give you a number of last month, which was a technicaltec particularly bad month. we know infiltrators came in from mozambique. >> reporter: he has military-style anti-poaching units, but they can only do so much. this new push to relocate the rhinos helps. as long as rhino horn remains a status symbol in asia and a long-debunked notion that it has medicinal effects, the killing will continue. this ancient species, slaughtered for the horn which, for millennia has been its first line of defense. diana magnay, cnn, krueger national park. >> and you will find much more on the fight to save rhinos from extinction on cnn.com. there you'll see the latest statistics and more stories of anti-poaching efforts. heavy and persistent floods in france. we've been looking at that in the last couple hours. ivan cabrera is here. incredible i8 amages coming out. >> it comes on the heels of a storm from the last couple weeks, and this last round has taken a toll. take a look at these cars, the at of force the water needs to be rushing to get these cars piled up like this is incredible. this is happening over the southern coast of france. they've received two months' worth of rain. just look at this, cars piled incredibly here. upwards of 3,000 people have been evacuated along the river there. upwards of five have lost their lives. this is an ongoing situation in france. and the issue and the problem and my concern is that it's going to rain over the same area, because this low is not going to be moving all that fast here. so what will happen is we'll have more rainfall that's going to be pulled in and it's going to be streaming. you see these bands set up, that is torrential rain, and that will continue over the next couple days here. so this is what i was referring to here. 132 millimeters, when they normally get 60 millimeters monthly. and that fell in 12 hours. that's why we had so much rainfall. the low will slowly move and will bring additional rainfall. it will come with gusty winds and coastal flooding. that's how high the waves are going to be. this is an ongoing situation that will be followed here closely at the weather center. on the northern side you'll see snowfall as a result of the cold air across the higher elevation, but the bull's eye for the nasty weather will be right where it's been the last few days. >> not good at all. many thanks to you, ivan. next here on cnn, the police couldn't keep up with this pack of bikers who lead them on a dangerous chase through california streets. we'll have that when we kol back. this is "titanfall," the first multi-player game built and run on microsoft azure. empowering gamers around the world to interact in ways they never thought possible. this cloud turns data into excitement. this is the microsoft cloud. so far, you're horrible at this, flo. yeah, no talent for drawing, flo. house! car! oh, raise the roof! no one? remember when we used to raise the roof, diane? oh, quiet, richard, i'm trying to make sense of flo's terrible drawing. i'll draw the pants off that thing. oh, oh, hats on hamburgers! dancing! drive-in movie theater! home and auto. lamp! squares. stupid, dumb. lines. [ alarm rings ] no! home and auto bundle from progressive. saves you money. yay, game night, so much fun. welcome back, everyone. shoppers who skipped the long lines at black friday sales in the u.s. and u.k. still have a shot at getting some deals cyber monday is here. it's a time when online retailers try to get your money by offering anything from clothes to toys to electronics. >> reporter: it's a bargain hunter's dilemma. shop on black friday or cyber monday? the monday after thanksgiving is all about scoring deals online. last year, sales totaled $2.3 billion, up 16% from 2012. black friday dwarfs that. in store sales the day after thanksgiving were $9.7 billion. but which day has the better bargains? if you're looking to score on clothing, shoes and beauty, cyber monday reigns supreme. looking for a laptop deal? black friday. so who wins the smackdown? depends on what you're shopping for. >> some retailers have decided to have cyber week instead of one day of deals. some bikers in los angeles, california are treating the streets like their own personal video game. they speed down streets with police on their tails and post the videos online. jeanne moos gives us a look at the wild chases. >> reporter: crazy. reckless. asinine. pack of motorcyclists causing a police car giving chase, doing stunts, and not just doing wheelies, but doing wheelies right next to the police car. [ sirens ] >> reporter: this brazen six-minute video was posted on youtube showing bikers in los angeles, driving on the wrong side of the road, running red lights, while the police car tries to cut them off. it's hard to tell who's chasing whom. more often than not, it's the police car that seems surrounded. there's even a police chopper with a spotlight giving chase from above. which is apparently why the bikers take cover under an overpass. a few dozen of them and make a mass exodus. though the chopper and its spotlight are still there, and the only accident seen on the video, one of the motorcyclists wipes out. we have no idea if he was seriously hurt. at one point, one biker says to another -- jackets handed over, we're guessing to somehow make identification harder. eventually, they turn down a pedestrian walkway, come out driving without lights, turn down an alley, park in the dark. the guy who posted the video says a few of the riders were caught and arrested, but most escaped. we tried to confirm that with los angeles police. but lapd told us they were too tied up with the ferguson protests to deal with questions about this. motorcyclists gone wild. they seem powerless to do anything but let these bikers slide. jeanne moos, cnn, new york. unbelievable. all right. something a little brighter on the holiday season is here, and that means the annual tradition of lighting the world's largest floating christmas tree. thousands of spectators gathered to watch the ceremony in rio de janeiro even though it is spring there. and that does it for this hour of cnn. stay with us, my colleague natalie allen is with you the next hour. all that plus a live report from hong kong where we are following developments from protests. here at cnn. . i'm natalie allen. welcome to our viewers in the united states and around the world. coming up here, clashes erupt in hong kong after pro-democracy activists try to surround government headquarters. >> it's a tense night tonight, more than two amongs after demonstrators occupied parts of hong kong. >> the u.n. admits it will miss its december 1st target for fighting ebola in parts of west africa. pope francis calls for muslim leaders around the world to condemn terrorism. also ahead a republican spokeswoman finds herself in hot water after taking on president obama's family.

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