police in munich, germany evacuated two train stations after refugee what they called a serious imminent threat of a terror attack. brussels canceled its party as arrests were made in a terror plot. security is tighter than ever in new york's times square, which is jammed with a million people. we have a team of correspondents covering this. first, holly williams, who has been following the fire in dubai. holliy. >> reporter: elaine, the dubai government says that the fire broke out on the 20th floor of the address hotel, quickly engulfing the 63-story luxury hotel and apartment building. the fire apparently began at around 9:30 p.m. local time. you can see the entire skyscraper lit up against the night sky. now, the dubai authorities say that they now have the fire under control, and they also say that only one person was killed by a heart attack during the evacuation. another 15 people were injured. not known. eyewitnesses say the fire spread very rapidly through the tower which is almost 1,000 feet tall. >> the heat was so intense outside it was unbelievable. and just people started to panic, crushing each other trying to get down the stairs and jumping over railings. i couldn't believe how fast it actually happened. >> there were people running in the corridors, and i ended up having to put somebody on my back. he was in a champion, carried him down to the ground floor. >> quijano: but, holly, this didn't affect the nooefs celebrations. >> reporter: surprisingly, elaine, no, it did not. around an hour after the fire broke out, the dubai authorities tweet that city's new year's eve celebrations would go ahead as planned and centered on the world's tallest building,ed burj khalifa, which stands just a few hundred yards from that hotel fire. >> quijano: holly williams reporting tonight. holly, thank you. munich, germany was just about to celebrate the new year when police got word of a terror threat. and told people to avoid crowds. elizabeth palmer has more on new year's in europe. ( cheers ) >> reporter: not even terrorist threats could keep europeans from ringing in the new, from moscow to berlin. although everywhere, security was heavy. especially paris, where terrorists struck twice this year. there, the defense minister himself appeared with some of the 11,000 soldiers on duty. it was a photo-op designed to reassure both residents and visitors. >> we're not really scared about it. we want to enjoy it. we've never been here on new year's eve, and it's magical. >> reporter: but the magic was scaled back a little. there were no fireworks this year, and the traditional party will wrap up earlier than usual. in brussels, the official party was canceled. city and workers dismantled the stage where the new year's show was to go on. after the arrest of two men suspected of planning holiday attacks. some think it was an over-reaction. >> i think it's backing down to the threat of terrorism. i think we should stand up and just make everything happen. >> reporter: but belgians are edgy. this week, police arrested yet another suspect with links to the paris attacks in molenbeek, a brussels suburb that was home to two of the, attackers, and one of them, saleh abdeslam, is still on the loose. still, new year's eve is for celebration, says brussels club owner pablo saccomano. >> i really believe that the people from brussels need to go out and party and need to gather as well and to bond together. >> reporter: and it wasn't only the belgian police, elaine, who discovered evidence of a new year's terrorist attack. the turks, too, have arrested to bomb crowded areas in ankara tonight. >> quijano: elizabeth palmer, thank you. new york city mayor bill de blasio says times square will be the safest place in the world when the ball drops at midnight. about a million people are there, as is don dahler. don. >> reporter: the n.y.p.d. says they're going to make good on the mayor's promise by raising the security here to the highest level since 9/11. it's a new york rich yut-- beginning at dawn, more than a million people are searched before being herded into 65 massive viewing pens. but this year, there are more police than ever. undercover officers roam among the ref lers, snipers watch from rooftops, and helicopters hoff every overhead. among the crowds, a radiation commissioner bill bratton. >> we are aware that the threat has changed because of isis. it's changed significantly from a year ago or two years ago. >> reporter: while insisting officials are concerned about individuals like 25-year-old emanuel lutchman. he was charged in rochester wednesday morning with a plot to commit an armed attack against civilians on new year's eve on behalf of isis. in his possession were ski masks, ammonia, duct tape, and a machete. los angeles has also increased the number of cameras and officers along the rowes bowl parade root. mark selby heads homeland security in southern california. >> there's never been a time that there have been more law enforcement personnel, seen and unseen, and there's never been a time that there's been more technology deployed in order to make it a more secure set of haven'ts. >> reporter: in las vegas, 1,000 uniforms and undercover officers are patrolling the strip. and in pittsburgh, extra canine, swat, and explosive teams have been added to protect the 40,000 to 50,000 spectators. janis wilson runs the event. >> we've always had a great deal with all of the things happening in the world, we're taking even greater precaution. >> reporter: more than one billion people will be watching this on television all over the world, but about 40 blocks south of where i'm standing, there are a few more viewers watching things more intently. elaine, these are specially trained police officers, keeping an eye on hundreds of closed circuit cameras. >> quijano: don dahler reporting from times square tonight. don, thank you. historic winter floods have killed at least two people this week in the midwest. nearly a foot of rain caused the mississippi river to rise towards record levels, along with the meramec river, and nearly a half dozen others in the region. david begnaud is in valley park, missouri. david. >> reporter: elaine, good evening. where we are standing, this is usually one of the busiest intersections in st. louis county where there would usually be semis passing through, tonight it is water from the meramec river, which crested earlier today. but tonight, not far behind where i am standing,ing it should be dry. over the next 12 hours, the meramecerinmisar misriver is expected to crest in st. louis at 42.5 feet, john houser lives just south of st. louis in the city of arnold. >> we're just fighting the water, and it's up to the red line right there, just trying to keep the pumps running and make sure the wall doesn't fail and hurry. >> reporter: overnight, the floodwaters snarled traffic for miles, and today missouri's busy i-55 became the second major interstate to close this week. gene liston was stuck in the middle of it. >> there's nowhere you can go, you know. i mean, it's water, but, you know, if there's enough of it, you can't do anything. >> reporter: statewide, more than 12 people have been killed due to the extreme flooding. it has washed away homes, highways-- >> that is highway 141. >> reporter: and shut down steve stenger is the executive of st. louis county. how many dials to you estimate are under water? >> it would be difficult to estimate but thanksusa, but very near us right now there are about seven miles under water, right where we're standing. >> reporter: that should be dry. >> that should be dry. >> reporter: back in the city of arnold, play-off robert smoke says the worst may be yet to come. >> we're to the point now where the sandbagging, it's not going to hold it back. we're going to lose probably anywhere from 100 to 150 homes will be affected by this flood, it not more. >> reporter: back here in st. louis county where we are despite massive flooding. the county executive says not one person has been hurt or killed since the flooding started. elaine. >> quijano: extraordinary pictures. david begnaud reporting tonight. david, thank you. in the northeast, this was the warmest december on record. the average temperature in concord, new hampshire, 38 degrees, was the warmest since 1868. 51 in new york's central park, 51 in philadelphia broke the record set in 1874. for businesses that rely on snow, rising temperatures mean plummeting profits. here's demarco morgan. >> reporter: with near-empty lifts and near-barren slopes, this wasn't the ski trip jackeline vasquez was hoping for. >> it's a mess. it's a mess. the snow's wearing down. this is the last time i'm going. i'm going home now. >> reporter: unseasonably warm temperatures left skewers scrambling. vicki said this and pennsylvania was their only option. >> every single one closed, closed, closed, until we get here and they said we just have one trail open. very disappointing. >> reporter: this banner landscape is a far cry from the winter wonderland of last year. >> it's not best-look snow, but at least we're open. >> reporter: general manager mark daubert. >> we've had some stowf touf years where it's been warm but it's never been this warm continuously. >> reporter: is this a first for you in your experience? this is the worst ever. >> reporter: it's not just here in blakeslee, pennsylvania. webcams at other resorts such at blue mountain, camelback, spring mountain and shawnee show snowless slopes. some report they have lost 20% of their business so far. colder temperatures start arriving tonight as the new year arrives, and daubert is hoping to make up for lost time. >> we'll get this thing started by the latter part of the weekend, and early next week, with the cold air coming in, we'll be back on our feet and get rolling again. >> reporter: elaine, we've learned that more than 70 ski resorts across the northeast are closed, but those numbers are likely to change with the temperatures expected to drop in the new year. >> quijano: demarco morgan reporting from pennsylvania tonight. demarc oh, thank you. in presidential race, several key aides have quit ben carson's campaign just a month before the iowa caucuses. carson had led several republican polls in iowa but has today, campaign manager barry bennett stepped down, as did doug watts, the communications director. bennett says carson has been ignoring him and relying on his longtime business manager armstrong wilyarnlings a radio and tv host. williams denies, that and carson had no comment. coming up, police in los angeles explain why crime is on the rise. jerry seinfeld takes a spin with the commander in comedy. and the golden gate bridge has a brush with big ben when the cbs evening news continues. just switch from denture paste to sea-bond denture adhesive seals. holds stronger than the leading paste all day... without the ooze. feel secure. be yourself. with stronger, clean sea-bond. this is the one place we're not afraid to fail. some of these experiments may not work. but a few might shape the future. ...new technology for capturing co2 emissions... ...and cars twice as efficient as the average car today. ideas exxonmobil scientists are working on to make energy go further... ...no matter how many tries it takes. energy lives here. if you could see your cough, it's just a cough. you'd see how often you cough all day and so would everyone else. new robitussin 12 hour delivers fast, powerful cough relief that lasts up to twelve hours. new robitussin 12 hour cough relief. because it's never just a cough. so get this, at&t and directv are now one. which means you can watch live sports on the go. live from the edge of your seat. or that seat. or her seat. or his seat. right? careful on that seat, guys. and that's not even a seat. that is cameron. get the best of both worlds. directv at home and 2 wireless lines. when heartburn hits fight back fast tums smoothies starts dissolving the instant it touches your tongue and neutralizes stomach acid at the source tum, tum, tum, tum smoothies! only from tums hi hey you look good. thank you, i feel good. it all starts with eating right. that's why i eat amaz!n prunes now. they're delicious and help keep my body in balance. i love these. sunsweet amaz!n prunes, the feel good fruit. >> quijano: crime rose in 2015 in los angeles, the first increase in 12 years. violent crime spiked about 20% in the nation's second largest city. property crime was up 10%. ben tracy is there. >> multiple shootings in the area. >> reporter: two drive. by shootings last night in los two others wounded. so far this year, there have been 280 homicides in l.a., up 10% from last year. the number of rapes increased 8.6%, and aggravated assaults jumped more than 27%. >> the spike in crime, i don't understand. >> reporter: iona diggs has lived in south l.a. for more than 60 years. her neighborhood has seen 74 more people shot in 2015 compared to last year. seen increased? >> the shootings, drive-by shootings. >> reporter: so serious stuff. >> serious stuff. >> reporter: all 21 l.a.p.d. divisions are reporting crime increases. that's notable because crime had fallen dramatically in los angeles in the past decade due to a crackdown on gang-related crime. police attribute some of this year's crime spike to a resurgence of gang violence this summer. in august, l.a.p.d. commander le trianon told cbs news about a where 50 people were shot, 15 of them homicides. >> there were internal gang dispiewrktz there were love triangles, there was domestic violence. most everything involved gangs in some way, shape, or form. >> reporter: since then the, the l.a.p.d. has stipped up community policing. iona diggs says she's not going to let gangs take back her neighborhood. >> don't say this is your 'hood because it's not. it's ours, you know, and i'm going to protect my 'hood, as you say. >> reporter: while crime it's the, it is worth noting that it is still quite a bit less than it used to be. in 1992, this city saw more than 1,000 homicides. elaine, this year that number is expected to be less than 300. >> quijano: ben tracy breaking down the statistics tonight, ben, thank you. with the president next. constipated? trust number one doctor recommended dulcolax use dulcolax tablets for gentle overnight relief suppositories for relief in minutes and stool softeners for comfortable relief of hard stools. want bladder leak underwear that moves like you do? try always discreet underwear and wiggle, giggle, swerve and curve. with soft dual leak guard barriers and a discreet fit that hugs your curves. so bladder leaks can feel like no big deal. get your free pair and valuable coupons at always discreet.com ( laughs ) >> come on. let's go. let's go get some coffee. >> quijano: last night, president obama appeared on jerry seinfeld's online series "comedians and cars getting coffee." seinfeld saids president has delivered just enough funny lines to qualify as a comedian. their conversation ranged from silly to surprisingly candid. >> how far you can wander around up there in your underwear, how far can you get before there's, like, people, and it's not cool? >> it's not cool, generally, wandering around in my underwear. >> how many world leaders do you think are just completely out of their mind? >> a pretty sizable percent. >> quijano: the president, who rarely gets to drive, took seinfeld's 1963 corvette for a spin around the white house grounds. a tremendous ship named the "benjamin franklin," "big ben "for short, pulled into oakland, making it under the golden gate bridge. at 1300 feet, it's locker than the empire state building and the largest cargo ship ever to dock in the u.s. a unique program is giving troubled kids a second chance. how are they doing one year later? that's next. except that managing my symptoms was all i was doing. and when i finally told my doctor, he said humira is for adults like me who have tried other medications but still experience the symptoms of moderate to severe crohn's disease. and that in clinical studies, the majority of patients on humira saw significant symptom relief. and many achieved remission. humira can lower your ability to fight infections, including tuberculosis. serious, sometimes fatal infections and cancers, including lymphoma, have happened; as have blood, liver, and nervous system problems, serious allergic reactions, and new or worsening heart failure. before treatment, get tested for tb. where certain fungal infections are common, and if you've had tb, hepatitis b, are prone to infections, or have flu-like symptoms or sores. don't start humira if you have an infection. ask your gastroenterologist about humira. with humira, remission is possible. what super poligrip does for me is it keeps the food out. before those little pieces would get in between my dentures and my gum and it was uncomfortable. just a few dabs is clinically proven to seal out more food particles. [ coughing ] [ sneezing ] a cold can make you miserable. luckily, alka seltzer plus cold and cough liquid gels. rush liquid fast relief to your tough cold symptoms. fast, powerful liquid gels it's here, the first gummy multivitamin... ...from centrum. a complete, and tasty way to support... ...your energy... ...immunity... and metabolism like never before. centrum multigummies. see gummies in a whole new light. have been more than 20- homicides in des moines in a year. at six, why police say the public should not be concerned. >> quijano: we close tonight with an update. last year, we followed some high school dropouts as they tried to turn their lives around through a program run by the national guard called the challenge academy. after graduation, michelle miller checked in on them a year later. >> get up out of your bunk! let's go! >> reporter: a lot has changed for 18-year-old adjekai stewart 2014 at sunburst youth challenge academy. >> yes, sergeant! >> you better hurry up! let's go. >> reporter: she and 200 other rebellious, unfocused high school dropouts were getting a wake-up call like none they'd ever heard. day! >> reporter: for five and a half months, we watched as they were transformed physically-- >> keep pushing. >> reporter: and emotionally. stewart spent 10 minutes atop this confidence-building course. >> i can't! >> reporter: before she was coaxed into taking a leap of faith. >> yeah! >> there you go. there you go. good job. >> you did it, stewart! >> reporter: do you see, though, how far you've come? >> i have, i have because i felt like i was just such a weak person back then. >> reporter: but if you hadn't gone through that. >> i wouldn't be where i am. i wouldn't. a first-semester college student. stewart graduated challenge academy last december. then she graduated from high school in june. >> i cried the next day because i was like, wow, like, i actually-- i actually finished. i actually graduated. so it was really cool. >> reporter: 17-year-old parker coker is almost finished, too. >> you're doing good, man, you're fine. >> reporter: at sunburst, we found a kid trying to climb out of the hole of his bad choices. back then, he explained it this way: >> you gotta look ahead, and it's not really easy to look ahead when you don't know how to, when nobody's really taught you how to. >> reporter: he'll graduate high school next year and plans to join the army. got a girlfriend? >> no. >> reporter: why not? >> it's that or straight "a"s and i chose the straight "a"s. >> reporter: where would you be if not for sunburst? >> probably in juvenile hall. yeah. >> reporter: we heard the same from nearly all of the through this program. edward tucker graduated high school this month. christa hopkins and ffrancisco lazo are on track to get their diplomas next year. angel kay lemaster has dived right into her post-sunburst life, and plans to try out for the swim team at rubidox high school. >> >> rock! rock! >> louder now. >> rock! >> reporter: the lengthy 16-year-old with the buzzcut could barely hold it together during the first few days at sunburst. if you listen to her story, you can understand why. >> me and my mom were homeless pretty much sleeping in cars, underneath freeways. yes, first sergeant! i was always on my own, couch hopping my entire teenaged life, which caused me to drop out. >> reporter: but now, she's focused on the future because she understands her past. >> i messed my life up, you know, and it's hard to stlit and sunburst in the first place. but it was an opportunity to open myself up and have a fresh >> reporter: a second chance. >> a second chance. >> reporter: more than 120,000 high school dropouts have gone through the national guard youth challenge program since it was created back in 1993. sunburst is one of the most rate. and, elaine, they just graduated 200 more students this month. >> quijano: compelling reporting. michelle miller, thank you so much. >> thank you. >> quijano: that's the cbs evening news. for scott pelley, stacey: why has the number of homicides in des moines spiked this year? and the uss iowa is today's home to the hawkeyes. we're live on board the historic battleship with thousands of hawk fans as they prepare for tomorrow's rose bowl game. good evening. the number of homicides in des moines in 2015 was as high as it's been in the past 20 years. kcci's mark tauscheck spoke with police about why the number spiked this year. aixa: -- mark: in april, a bar fight in the parking lot outside gerri's bar and grill in des moines left andrew purcell unconscious and bleeding after being punched in the face, falling and hitting his heaon the asphalt. he later died. police charged 29-year-old daniel patton with voluntary manslaughter. according to des moines police out of the 21 homicides in des , moines this year purcell's death was the only homicide where the killer and the victim did not know each other. >> we look at each event as it's we do that and we start picking