have gotten it wrong could be wrong. enough already. it's not like it's rocket science. we put the laws of physics to the test once and for all. that and more right here, right now on cnn. hi there, i'm susan hendricks. you're in the cnn newsroom. evacuations are on hold after talks between the red cross and syrian officials failed. at least 100 people were killed today alone. half of those in the city of homs. [ speaking foreign language ] armed groups fighting against the government say syrian troops are terrorizing residents with sniper and shelling homes. humanitarian groups and aid workers say the situation is getting worse. at the moment, cnn has no reporters and no cameras inside syria. the government strictly limits access right there. but i want to show you one way we are able to bring you images of the fighting. freelance film makers, sometimes amateurs with video kamras, release their material for the world to see. this was recorded in homs by a very brave french film maker. he name is manny. [ machine gunfire ] >> reporter: urban guerrilla warfare like this is relentless and terrifying. the fighters take crazy risks. but stay still find time to look out for manny. [ gunfire continues ] back at the headquarters, the battle is raging. free syrian forces have detonated a bomb below the roof top position where government snipers are trapped. after more than 12 hours, the snipers are still putting up a fight. [ gunfire continues ] casualties are mounting. free syrian fighters have entered the government's security building. [ horn honking ] [ gunfire continues ] it's room-to-room fighting now. stairwell-to-stairwell. it's a humiliation for president assad. with bullets still flying, fighters make off with boxes of much-needed ammo. >> the morning after. the secret police building has been gutted, as has the local post office. down the street, there's a long line for bread. with parts of the city besieged, you can no longer get to shops in neighboring districts. >> a couple of blocks away, and you're in a district where many belong to the president's sect. they have not been attacked. homs, now a patch work dividing along sectarian lines. this doorway is as far as sunni muslims can go. for them, one step into the street and they're in sniper alley. >> it is truly unbelievable what's going on there in syria. we also want to tell you that cnn has learned that american journalist marie colvin, who was killed wednesday in homs, will likely be buried in syria, according to her mother who said aid workers have been trying to getler body out of the country but it's just too dangerous. two american officers shot dead in afghanistan, not on the battlefield but in a place where they should have felt most safe. at their office inside a government building. and the person who pulled the trigger is still out there. our own nick patton walsh is standing by in kabul where this all occurred. >> reporter: a day of much confusing information. what has emerged is two americans have been shot dead on the afghan ministry compound, on a secure part of that compound where western forces have some of their training personnel. the taliban have leaped forward to clean responsibility saying the gunman was working for them, saying he was acting in revenge because of the burning of a koran that happened a week ago on a u.s. air base. that, of course, not something which can be confirmed. they say the gunman was not a werner and he escaped from the crime. this may suggest he is perhaps an afghan and we have heard from across the atlantic a state from the u.s. department of defense that the afghan defense minister pledged to cooperate in this investigation and apologize. but really this plays into the larger issue of trust between americans and afghans. nato, in a real rush here to get afghan security forces ready to take over security to they can begin to withdraw. an instance like this just damaged that vital relationship. today, already we see a reaction from the commander general john allen, withdrawing all his military advisers from ministries in an around kabul as a precaution. in fact, it could begin to impact that vital training mission. but the real impact is going to be psychological on u.s. and nato soldiers. they've already seen an increase in instances which men on afghan uniforms turn their weapons on troops training them. this is a place where they should have felt safest and it's occurring in this climate of protests across the country. pro- really this instance happening in the secure afghan interior ministry is going to play heavily on the psyche of many nato soldiers here. nick payton walsh, cnn, kabul. nelson mandela is said to be recovering after undergoing hernia surgery. he was hospitalized earlier today. the news sparked fears that the 93-year-old icon was seriously ill. but a family member insists the surgery was planned and nelson mandela will likely will released by monday. he's beloved by his nation and around the world. he gained notoriety after enduring 27 years in prison for battling apartheid. in 1994, he went on to become south africa's first black president, serving one year as promised. he retired from public life eight years ago and sense then has remained in virtual seclusion. the compound in pakistan where u.s. special forces killed osama bin laden last may is now being demolished. the work is being done at night using flood lights. if you look close here, you can see heavy machinery knocking down the walls and the building where bin laden had been hiding. a pakistani said they didn't want to turn it into a shrine for would be follows of osama bin laden. what happened between the son of robert kennedy and two nurses at a new york hospital? that report is next. also, take a look at this. people are out of control. guess why? because of sneakers. we will show you and tell you more about what the fuss is all about. what's this? [ male announcer ] quaker oatmeal squares have 46 grams of whole grains... mmmm. ...and a touch of sweetness. you'll be delighted to discover how good they taste. get your free sample of quaker oatmeal squares on facebook. get your free sample of quaker oatmeal squares like splenda® essentials™ no calorie sweeteners. this bowl of strawberries is loaded with vitamin c. and now, b vitamins to boot. coffee doesn't have fiber. unless you want it to. splenda® essentials™ are the first and only line of sweeteners with a small boost of fiber, or antioxidants, or b vitamins in every packet. mmm. same great taste with an added "way to go, me" feeling. splenda® essentials™. get more out of what you put in. and who ordered the yummy cereal? yummy. [ woman ] lower cholesterol. [ man 2 ] yummy. i got that wrong didn't i? [ male announcer ] want great taste and whole grain oats that can help lower cholesterol? honey nut cheerios. yoyou u wawalklk i intna coconvnvenentitiononalal ms ststorore,e, i it't's s ry nonot t ababouout t yoy. ththeyey s sayay, , "w"weleu wawantnt a a f firirm m bebn lilie e onon o onene o of ff yoyou u wawantnt a a s sofou cacan n lilie e onon o onene o " wewe p prorovividede t thet inindidivividudualalizizatat yoyourur b bodody y neneede. wewelclcomome e toto t thehe slsleeeep p nunumbmberer . nonot t jujustst o ordrdininaran sasalele, , bubut t ththe e bn chchanangege y youour r lilifef. ththe e slsleeeep p nunumb. ththisis i is s yoyourur b bodo. yoyou u cacan n sesee e a a lile prpresessusurere i in n th. nonow w yoyou u cacan n fet hahappppenens s asas w we e rarr slsleeeep p nunumbmberer s seted alallolow w ththe e bebed d totr toto y youour r inindidivividud. wowow!w! ththatat f feeeelsls r reae. itit's's h huguggigingng m. itit's's n notot a abobt sosoftft o or r fifirm. itit's's a aboboutut s supuppope yoyou u fifindnd i it t momost. huhurrrry y toto t thehe f fif ththe e ulultitimamatete s slelr evevenent,t, w wheherere n mamattttreresssseses n nowot jujustst $ $59599.9. anand d sasaveve a an n asag 5050% % onon t thehe f fininalat ofof o ourur i innnnovovatae lilimimiteted d ededititio. yoyou u cacan n adadjujustst i r yoyou u wawantnt s so o yoyoue toto w wororryry a aboboutg ththe e wrwronong g mamat. ononlyly t thrhrououghgh s. ononlyly a at t onone e ofo0 slsleeeep p nunumbmberer s. at meineke i have options... like oil changes starting at $19.95. my money. my choice. my meineke. welcome back. new details are emerging in a bizarre hospital incident involving the youngest son of the late senator robert kennedy. douglas kennedy is facing misdemeanor charges after he got into some sort of altercation with two nurses as he tried to take his newborn son outside of the hospital for a walk. earlier cnn's susan candiotti told me how it went down. >> reporter: well, the question is, was he defending his rights as a parent and protecting his child or refusing to follow a nurse's order? douglas kennedy was visiting his wife molly in the maternity ward two days after his c section and said he wanted to take his baby outside for fresh air. it was about 7:30 on a saturday night last month. it was in a hospital in a new york city suburb. baby beau was swaddled in a blanket and cap. kennedy says some nurses were willing to let him go. but when others disagreed, things took a nasty turn. nurses convinced him to leave an elevator and took him to a stairwell and that's when things got physical. >> the father grabbed her wrist and arm and twisted it so severely she had tremendous pain in her arm. she then backed off with the other nurse standing right there. the gentleman proceeded to kick her so hard with so much violence that she flew through the air and landed in the middle of the corridor. >> kennedy's lawyer says he was trying to protect baby beau and used a knee, not a foot to stop the nurses. who were grabbing for his baby. >> the only aggressors were the nurses and the nurses said he could go outside and it only changed when another nurse and another nurse after that became aggressive and blocked douglas from walking with his baby outside to get fresh air. >> the nurses told police the baby's head was shaking violently from side to side. kennedy's lawyer denies it, saying the baby slept through the whole thing. both sides agree that the baby was not injured. an emergency room doctor who saw what happened defended hi boyhood friend in a statement. quote, the nurses were the only aggressors. to charge mr. kennedy with a crime is incomprehensible. seven weeks later, the local d.a. charged kennedy with a misdemeanor for child endangerment and harassing the nurses. >> our thanks to susan candiotti for that report. news out of pennsylvania. an official with the catholic arch diocese of philadelphia is asking a court to throw out child endangerment charges against. attorneys say a 1994 memo shows he created a list of problem priests, but a cardinal destroyed it. he's accused of keeping priests who abused children in the ministry and transferring them from parish to parish. this is the first case in the u.s. that charges those who were accused of failing to stop the abuse, not just those accused of abusing. is washington feeling our pain at the gas pump? a report on what congress is doing to bring those prices down. that's next. [ female announcer ] experience dual-action power, with listerine® whitening plus restoring rinse. it's the only listerine® that gets teeth two shades whiter and makes tooth enamel two times stronger. get dual-action listerine® whitening rinse. building whiter, stronger teeth. golly, that is deep snow! yeah, can you get me out of it? of course. travelocity? that's how i got here! that's amazing! but i'm still stuck. come on man, dig it! [ female announcer ] travelocity. get great deals on all kinds of beach vacations. in an election season, headlines become key ingredients for promises. but with the price of gas skyrocketing, can our government do anything to lower the price? >> reporter: as prices at the pump rise, so does the political rhetoric. >> they're saying by the summer drive time, it will hit $5 a gallon. >> i have developed a program for american energy. >> reporter: and in washington -- >> gas prices have doubled since the president took office. >> reporter: average gas prices have risen some 40 cents a gallon over the past year, and boosting domestic energy production is an important topic of debate on capitol hill. >> gas prices are so important because it's such a tangible and real impact on people's lives. they can feel it. it affects their everyday life. that's why it's such a political issue when it comes to fighting between the two parties. >> reporter: the republicaned controlled house passed a bill that would increase offshore drilling, open the wildlife refuge to drilling, and fast track approval of the keystone pipeline. this would not bring down gas prices immediately. the only way to do that is to cut the gas tax. but they say that's not necessarily a reason to reject them. >> to judge the merits of a long-term project whether it will have short term impact, that's like not saving for retirement now because you're not retired. >> reporter: president obama has touted what he calls an all of the above approach. one focused on increasing domestic production, improving car efficiency and developing alternative sources. he said america can't drill its way to lower prices. >> while there are no short term silver bullets, i've directed my administration to look for every single area where we can make an impact and help consumers in the months ahead. >> reporter: on wednesday, three house democrats sent the president a letter asking limb to develop an aggressive strategy to release oil from the reserves. if white house has taken no response off the table 69 athena jones, cnn, washington. >> gas price also be a big topic sunday morning on "state of the union" with candy crowley. she will ask if the president successfully made his case to fight rising prices or $5 will become the norm. that begins at 9:00 eastern. don't miss that. just three days to go before a pair of key primaries in arizona and michigan. rick santorum's national lead has shrunk to a single point. it's that close. the survey shows santorum leading mitt romney 31% to 30%. santorum had a ten-point lead just three days ago. it's ever changing. in arizona, the news for romney could be better. he's still ahead of santorum, 39% to 35%. but his lead has dwindled by three points. and here's where romney has real trouble. in michigan, where he's from. the latest arg poll has him trailing 38% to 34%. losing michigan would be embarrassing for mitt romney, considering he was born there, raised there, his father was governor there. our joe johns is standing by in troy, michigan. joe, many thought this would be a slam dunk as you can imagine for romney just a few weeks ago. what is he doing now for a last ditch effort? >> well, you know, he's had problems with evangelicals, with social conservatives, who viewed him with suspicion somewhat. but he's had problems connecting with audiences. i talked to one man in this audience here in troy, michigan, where romney appeared today, who said he feels as though romney can be canned, if you will, and he compared him to rick santorum who said he sounded more spontaneous, more authentic. so what the romney campaign has been trying to do is find ways to help the candidate connect. one of the big ways is bringing out one of their so-called not so secret weapons, that would be ann romney, who is the wife of the candidate. they brought her out here in troy, michigan, and she really warmed up the audience and connected with them. listen to the sound bite. >> year ago when we were making that final decision whether to step forward and do this again, it was a tough decision, because i told mitt four years before, i was never going to do this again. he laughs and said, you know what, ann? you said that after every pregnancy. maybe i should just do all the talking and let him stand here and watch me. i've also decided no more debates. if we're going to do another debate, he's going to sit in the audience and watch me. and that will be it. >> reporter: she does have an advantage, though. she, like mitt romney, grew up here in michigan. so she was going to be received warmly, especially in this place. >> joe, i think that was a great move, ann romney very funny, kind of warmed up to the audience there. and i know they're trying to humanize mitt romney, but it's almost like he has so many missteps. he was talking about being from michigan, loving the trees. then he talked about the cars that he drove and the quote unquote cars that his wife drove, right? >> reporter: right, right. and the thing about that, i was in the room there at that football stadium where he gave that speech. and the message he was trying to send was, he and his wife, ann, really love cars. but i think the message that some people might have received is that they're really, really rich. so that's a problem for him. as you said, there's never a time where he does any huge damage to himself. it's just a bunch of little cuts and a lot of times it's about the way in which he sort of refers to things, the way he talks about things. truly a problem for mitt romney going forward, especially if he gets the nomination, because he's going to be up against a guy who tends to connect with audiences when he has to. that would be barack obama. >> yeah, as we have seen before, joe, anything can happen in michigan and in arizona. joe johns, thank you. tuesday, two more opportunities for one of the republican presidential candidates to separate from the competition. our coverage of the arizona and michigan primaries begins at 6:00 eastern with a special edition of "john king usa" followed by live coverage of the results starting at 7:00 eastern. you know, the oscars are this weekend and one nominee could become the first african-american ever to win best documentary. that's next. ring rinse. it's the only listerine® that gets teeth two shades whiter and makes tooth enamel two times stronger. get dual-action listerine® whitening rinse. building whiter, stronger teeth. i like yoplait. it is yoplait. but you said it was greek. mmhmm. so is it greek or is it yoplait? exactly. okay... [ female announcer ] yoplait. it is so greek. welcome back. exciting stuff here. a young african-american film maker is making his first appearance at the oscars this sunday. his documentary about a high school football team that went from all losing seasons to undefeated was picked up by heavy hitters. if he wins, he would make history. kareen wynter has this story. >> for almost 14 years, we never won a football game. >> reporter: for manassas high school in west memphis, losing football games was a decades long tradition. until they became undefeated. >> we took the title "undefeated" because it speaks to the subtext of the film. >> reporter: they filmed the season when the team went all the play to the playoffs. with its unflinching action, heart wrenching emotion, and the unwavering determination of a beloved coach -- >> everybody says, when you get these inner city kids down, they'll lay over and you'll beat them by 40. not us! >> reporter: the documentary is now oscar nominated. >> i get up there and i recognize these two voices talking behind me. i turn around and to my left is steven spielberg and to my right is martin scorsese. >> reporter: rubbing elbows with industry icons has become a habit for the film maker. first, harvey weinstein bought the film. >> i truly related to the film, because the first time i felt defeated in my life is when i got injured in my senior year in high school. i wish i had a coach that believed in me. >> anybody can be a champ. >> reporter: if mart season a champ come oscar sunday, he'll make history as the first black film maker to win for a documentary. >> this film is 100% a collaboration between myself and my dan lindsey. so i want to make sure he gets recognized for being the 10th director of irish-american descent to get -- to win an oscar, as well. >> there's nothing else to be said except for one thing. don't quit. >> reporter: kareen wynter, cnn, hollywood. >> tune in sunday night as a.j. hammer hosts our special live coverage of the oscars, the road to gold sunday at 6:30 eastern. checking our headlines for you now, two american officers have been shot dead inside the highly secure afghan interior ministry and the gunman is still at large. the taliban is claiming responsibility, saying the shootings were in response to the recent burning of korans at a u.s. base. the burning has sparked riots but the military says it was a mistake. hundreds of protesters took to the streets for a fifth day across afghanistan to demonstrate against the burning of the korans. four civilians were killed, 50 injured, including 12 police officers. the head of the intelligence says the protesters tried to burn down the u.n. building. a relative of nelson mandela says the former south african president is in satisfactory condition after undergoing hernia surgery. he was hospitalized earlier today, sparking fears the 93-year-old anti-apartheid leader was ill. we are told he could be out of the hospital by monday. a judge has dismissed the corruption case against former italian prime minister. the judge ruled that the statute of limitations expired in the case. he survived a series of scandals over his many years in power. the compound in pakistan where u.s. forces killed osama bin laden last may is being demolished. if you look closely, cranes and heavy machines are working through the night, knocking down walls around the compound and the build bring bin laden had been hiding. a pakistani official says they don't want the place to become a shrine for people who may be followers of osama bin laden. how about this, coming up next, a $220 pair of sneakers has people doing this. are those great-tasting little o's made from carefully selected oats that can help lower cholesterol. is it a superhero? kinda. ♪ kinda. like splenda® essentials™ no calorie sweeteners. this bowl of strawberries is loaded with vitamin c. and now, b vitamins to boot. coffee doesn't have fiber. unless you want it to. splenda® essentials™ are the first and only line of sweeteners with a small boost of fiber, or antioxidants, or b vitamins in every packet. mmm. same great taste with an added "way to go, me" feeling. splenda® essentials™. get more out of what you put in. whwheeeeeeeeeeeeeeeeeee! whwheeee! ! whwheeee!! whwheeeeeeeeeeeeeeeee! ahah h heaeadsds u up. whwheeeeeeeeeeeeeeeeeee! evevererytythihingng y youou l , nonow w momobibilele.. dodownwnloloadad t thehe n nep totodaday.y. all right. so who doesn't like a stylish pair of sneakers? nike's latest is more than $200. but still people can't wait to get their hands on them. our martin savidge looks at the chaos that has ensued because of it. >> reporter: this is what all the foot fuss is about. the shoe retails for $220, if you can find it, and it's finding the shoe that has led to problems. >> leave the property, do it now. >> reporter: in orlando, home to the nba all-star game, more than 100 deputies wearing helmets and holding riot shields to guard outside the florida mall as a crowd waited for the shoe to go on sale there. they eventually had to move in after authorities say shoe fans became disorderly. outside a mall in suburban washington, d.c., the crowd began growing thursday for the shoe to go on sale friday. when the number of people got to 1,000, the shoe store cancelled the release out of safety concerns. >> huge disappointment. i mean, i was out here at least seven hours waiting on the shoes. and no shoes. so it's sad. >> reporter: elsewhere in other cities, there were reports of long lines but no real problems. nike issued a statement calling for calm, saying we encourage anyone wishing to purchase our product to do so in a respectful and safe manner. in miami, they resorted to name calling. >> two more times, michael bradshaw. >> and in a lottery system to keep it orderly. >> if you go right now in line, they'll be worth about $1,000. >> reporter: this is ebay, and hefty prices. $1,700, $1,200. i don't know if this person is a capitalist or just an optimist. if you want to buy the shoe right now, $10,000. that's canadian by the way, each more in the u.s. one customer put it, this is the most anticipated shoe of the year. at least until the next must have sneaker comes along. martin savidge, cnn, atlanta. >> i'm truly perplexed over that sneaker and the price of it. coming up, it's the kind of story that's difficult to hear. a child is abandoned and left homeless in a big city. for a washington man, it's not a story, it's his life. until the age of 10 when he found his calling. >> and new light heavyweight champion of the world -- >> it's something i've been working for, for a long time. 18 years now. just all the hard work paying off is a great feeling. >> reporter: once down and out and forced to fend for himself as a little boy homeless, 28-year-old lamont peterson is now about to make his first $1 million paycheck as the reigning light welterweight champion. >> i just feel blessed. just blessed to be living my dream. >> he's certainly living his dream. we'll have more of peterson's story tomorrow night, 10:00 eastern, and we will meet the boxing champ in person, too. ahead, a man you have to see and meet. we'll introduce you to a doctor who makes his house calls by boat to some of the world's most remote areas for free. he's this week's cnn hero. ♪ newsroom goes indepth, sharing the stories of unique individuals across the country. people who are proud to say "i am america." in addition to asking our 1 million i-reporter, we turned the camera on don lemon. listen as don tells his story. >> i'm don lemon. and this is where i work. i spend more time here than at my home. it's the cnn world headquarters in the south. i grew up in the deep south in baton rouge, louisiana. back in the 1960s and '70s, growing up in baton rouge was pretty much all about black and white. people, i'm talking about. and when i turned on the television or opened a magazine, there were very few people in the media who looked like me. when i got old enough, i decided that i wanted to change all of that. imagine that. an african-american man who grew up with a single mother who raised three kids successfully, working for one of the biggest news organizations in the world as a national anchor. that's pretty amazing. i'm don lemon and i am america. >> it is really amazing, don. thank you for sharing your story. i want to tell you about a cnn hero. he's a doctor who makes house calls by boat, traveling into some of the world's most remote areas to treat more than 10,000 patients in the last two years, all for free. >> my name is dr. benjamin labrot. i called an organization called floating doctors to use a ship to bring health care into the communities that have fallen through the cracks. floating doctors has a 100 ton ship we refurbished from a derelict hull and we use that to transport all of our supplies. since we set sail about 2 1/2 years ago, our mission has been continuous. we were two months in haiti, honduras, and we've been in panama for the last eight months. in the last two years, we've treated nearly 13,000 people in three countries. i'll find patients who have never seen a doctor before in their lives. typical community is usually living with no electricity, with no running water, with no sewage. essentially living with none of the basic requirements, as we understand it. we've built schools, we've done community projects. we provided health education for thousands of patients. floating doctors is an all-volunteer organization. nobody gets paid. all of our supplies are donated. i had to postpone many aspects of my own personal life. i don't have a home somewhere. i had to give up a lot. but i gained everything. remember, cnn heroes are all chosen from people that you tell us about. to nominate someone making a difference in their community, tell us about it. go to cnn heroes.com. it seemed impossible last fall, the science world freaked out because it looked like einstein had been proven wrong. some scientists said this showed things could go faster than the speed of light. but it seems they made a mistake, not einstein. that's next. olesterol and who ordered the yummy cereal? yummy. [ woman ] lower cholesterol. [ man 2 ] yummy. i got that wrong didn't i? [ male announcer ] want great taste and whole grain oats that can help lower cholesterol? honey nut cheerios. then don't get nickle and dimed by high cost investments and annoying account fees. at e-trade, our free easy-to-use online tools and experienced retirement specialists can help you build a personalized plan. and with our no annual fee iras and a wide range of low cost investments, you can execute the plan you want at a low cost. so meet with us, or go to etrade.com for a great retirement plan with low cost investments. ♪ i love that. it is time to get mysterious, jacqui jeras is here with our saturday night mysteries. what do you have this week? favorite segment. >> this is so much fun. the first one is off the beaten path. it has to do with some chimps. this is a 29-year-old chimp living at a sanctuary in louisiana. and on valentine's day, caregivers found her with a new baby, which sounds normal, right? but the thing is, this is a sanctuary for research chimps to basically retire. all the male chimps have had vasectomies. >> i think one was hiding. >> there are five possible candidates. we have merv on the left, conan in the middle, jimoh on the right and the other candidates, magnum and mason. >> this is like the bachelorette. they've all got roses. >> it turns out, let's go back to the first one, take a look at conan. he's got a little history to him, believe it or not. five years ago, he fathered a different baby at the sanctuary. it turns out his vasectomy didn't work, so they gave him another one. they're going to be doing dna tests. >> i think there's some conan o'brien jokes in there somewhere. time to vindicate einstein. a big deal was made about his theory of relativity. e equals mc squared. the results were saying that the speed of light may not be the speed limit of the universe. so we'll go back to the beginning. the research experiment had to do with this lab in italy. they sent these tiny little subatomic particles to a lab in switzerland. it's that big particle collider thing where they're trying to figure out how the universe was formed. it turns out as these subatomic particles were sent out, some of them arrived faster than a beam of light. take a look at the image. do we have it? no. speed of light, 186,000 miles per second. there it is, that's the shot i'm looking for. see the outline on the left there? that's 60 nano seconds faster than the speed of light. they said there is no way, this can't happen. so they did the experiment again. same result. so this was all in the fall and they've been trying to figure out what happened. it may come down to a single wire. a connecter between a gps and the timer system, they think it was loose. >> i think conan the chimp may have been involved in there somewhere. >> one more has to do with the moon. new moon pictures have scientists wondering whether or not there could be an earthquake that took place there. plus, i've got my 3-d glasses out. that's coming up. we'll be right back. >> we have two great ones so ek. mmhmm. so is it greek or is it yoplait? exactly. okay... [ female announcer ] yoplait. it is so greek. >> we have two great ones so far. what's your third? it has something to do with the moon. >> it's a two-part last mystery. we've been telling you the last couple of months about this lro project. it's lunar reconnaissance orbitter. take a look at what they found. you are looking at a picture of what nasa is calling graven, which is a deep valley. we have that happen here on earth, but we've never seen it happen on the moon. the whole idea of the moon is this was this hot mass millions of years ago that's been contracting as it's been cooling over these years. so it's the first evidence of any kind of separation going on of the crust. so that means that geologically, things are happening there, which then kind of begs the question, does that mean can you have earthquakes on the moon? or would you call it a moon quake? >> i'm fascinating by the shots. >> it also recently released some 3-d images of the moon. and you need glasses to see this. 3-d glasses, i'm not kidding. there is a guy, jeffrey ambrosiac, and he created those 3-d images to pop out. these will help you do that, with that image. you can make them rat home, it's really easy. this is a jewel case from a cd. that's all it is. take a red and blue square, color it up and old it up to your eyes. >> something to do with the kids. jacqui, thank you. checking some of the headlines for you. a relative of nelson mandela says the former south african president will be discharged from the hospital by monday. he's recovering from what we're told is a planned hernia operation. the youngest son of the late senator robert kennedy is in trouble. he's facing charges for allegedly knocking down one nurse and injuring another as he tried to leave a new york hospital with his newborn son. kennedy was trying to take his son for a walk outside, he says, when the nurses tried to stop him. an attorney for the nurses says they didn't recognize kennedy and were trying to protect that baby. how about those gas prices. they're spiking even higher. the cost to fill up the tank jumped three cents overnight. aaa says the average price for a gallon of regular unleaded gas is now $3.67. the new darling of nascar, danica patrick walked away from her second crash in three days. that is her in the green car, number 7. watch as her own teammate nudges her from behind. very scary, especially after she suffered a crash on thursday. she is okay. she'll be there tomorrow for the daytona 500, the big race. you may think of cnn's rob marciano as a guy who chases hurricanes, stands out in the snow to do the weather for us. but he's a big sports fan and fan of nascar, as well. he's been getting ready for tomorrow's big race, the daytona 500. >> reporter: they're prepping three teams for daytona. today we spend time with the 99 pit crew to see how they make it happen. that was fast. what is the goal here, how many seconds? >> about 11.50 in practice. >> squirrel is going to be your instructor. >> you'll have your left hand here. when he pulls it out. >> how much does that tire weigh? >> 65 pounds or so. >> i've been changing diapers for three months. if that's more than nine pounds, i can't lift it. >> you got the job already. jack man leaves, take off with him. playing frogger. ♪ >> 25 seconds. very good. >> you look a little intimidated running out in front of a racecar. >> i wasn't sure he was going to stop. the 99 team in the weight room. i need some help. >> have a seat here. >> how off do they train? >> twice a week, doing workouts and train two other times a week doing conditioning workouts. >> that hurt. >> their best ability is their durability. nascar is a long season, they do a lot of pit stops. >> i can see why you can build a championship team. >> what are the things we're working on today? >> we're working on the setup stuff. check the air pressure, set the heights and we'll get it dialed in. >> all of what you're showing me is precise, serious engineering. a lot of people say you're just driving around in circles.