24 hours before the first in the nation iowa caucuses. the final polls show trump and clinton slightly ahead. cruz and sanders predicting upsets. will a blizzard impact voter turnouts? the teams arrive for super bowl 50 along with hundreds of law enforcement officers for what could be the biggest national security event of the year. >> virginia tech athlete charged with murdering a 13-year-old girl. did they meet on social media? students allege racial intolerance at an elite boston high school. and largest sled dog race this side of alaska is under way. keeping a mushing marathon tradition alive.

as allen pizzy reports, inside their country and trying to escape. we warrant the footage and no distance at all what would be peace talks in geneva. even as participants argued over whether or not to get down to business. children and their families fleeing the perilous crossing from greece compared with january last year. 250 are believed to have drowned this month alone. this is the kind of horror that makes them take the risk. dozens of people were killed in damascus when a car bomb went off in a suburb. two suicide bombers struck rescuers attingatting -- addinge

carnage. syria is a catastrophe. >> secretary of state john kerry called on participants to seize the opportunity to bring an end to the conflict. the talks are supposed to begin in some form monday. >> this conflict could easily engulf the region. if left to spiral completely out of control. that is what the negotiations in geneva can prevent. >> so far, the talks are refusing to speak to each other despite the messages from a damascus suburb and turkish beach. the cbs overnight news will be right back. ,,,,,,,,,,,,,,

two virginia tech students were arrested this weekend in blacksburg police department mike albert. >> based on evidence collected to date we determined that they were acquainted prior to her disappearance. >> saturday authorities charged eisenhower with murder. police say they found lovell's remains near the virginia north carolina border about 100 miles

from her home. lovell's family reported her missing wednesday and say her dresser was pushed up against her bedroom door. a missing child poster noted she required medication daily for her liver. friday her father posted this message to facebook. >> nicole, honey, if you see this, if you are out there, you can come to me. i am not mad at you. i am worried about you. your family is worried about you. just come home. >> nicole's facebook page shows she was a member of at least one teen dating group but unclear whether she met eisenhower on line. last march, the champion was recognized as student athlete of the week by a local news station. >> i will personally not stop until i reach my peak performance. >> investigators spent four days searching for lovell. police search for evidence on the virginia tech campus. virginia tech released a statement extending support to lovell's family and friend.

police have not release a motive or cause of death. the coroner's office tells cbs news the autopsy is schedule ford tomorrow. >> thank you very much. the super bowl teams arrived in the bay area today one week ahead of the big game. the denver broncos landed an hour before the carolina panthers. behind the scenes, teams of federal and local law enforcement official are fine tuning security plans for the super bowl. john blackstone has an inside look. ♪ ♪ >> reporter: celebrating the weekest big in football, san francisco is expecting a million visitors a day. six blocks downtown, has been turned into super bowl city. it is a place where football fans big and small can play interactive games. and pose for photos. but first, they will have to line up to go through metal detectors. san francisco's police chief craig sur. >> there will be officers in plain clothes, high ground. a lot of it will be unseen to

the regular person that is just going to come and have a great time in san francisco. >> law enforcement agencies have been planning for this for two years. coast guard canine units are on hand to screen the crowds for explosives. the fbi brought bomb detecting robots. just in case. dozens of federal state and local agencies have set up a joint operation center. david johnson is fbi special agent in charge in san francisco. >> really what this facility is for is -- to collect information, thread information, intelligence, analyze it and get it out to people that need to know. >> reporter: geography is making security planning more difficult. while many events are taking place in san francisco, levi stadium is 45 miles away in santa clara. that's where 70,000 people will gather for the game next sunday. while fbi officials say there is no known credible threat of a terror attack, an individual working alone, can prevent a clear danger. >> all about, identifying the

lone wolf before he or she acts. hard to find. absolutely no doubt about that. i think we saw that in san bernardino. >> part of the security plan depends on all of these fans being watchful as well. at every opportunity, jeff, san francisco's police chief repeats the phrase "if you see something, say something." >> john blackstone, thank you. el nino soaks california. highway 101 ventura county was flooded. conditions at the farmer's open in la jolla very bad. some parts of the state expecting 3 inches of rain. multiple deplalaydelays. helpful in battling the drought, the rain unhelpful in the insidious problem of cliff erosion. here is carter evans. >> reporter: el nino powered waves are taking a human toll with the crumbling hillside south of san francisco is giving scientists a gold mine of

information. the nature conversancy asked drone handlers to capture a sight rarely seen. >> drones provide a really great perspective you can't get safely any other way. where below the cloud, right near the sea level, and, shooting back at the shore. >> reporter: the drones buzzing above the cliff aren't just taking pictures they're gathering data to create a 3-d map of the eroding california coastline. what have you seen along the coastline so far? >> i have seen destruction. >> this week, george flew his drone in a grid in pacifica. like this apartment building teetering on the edge. >> mapping the coast during high tide will give us an idea of where the high tides are going. and hopefully in the future be able to predict what happened here at the apartment complex. >> reporter: it is a big job. there is 1,270 miles of shoreline along california.

scientists identified several thousand homes that may be in jeopardy during this el nino winter. >> the work you do here today may make it safer for people to live here tomorrow. >> hopefully. that's the point of the whole thing. we can do this now. why not? >> reporter: it could eventually help those who never intended to live on the edge. carter evans, cbs news, pacifica. all three inmates who escaped a southern california jail are back behind bars. the last two fugitives face charges including murder and torture returned to jail overnight. they were captured in san francisco yesterday. a third inmate surrendered friday. this time the men are beg kept in separate cells. >> still ahead, accusations of racial intolerance at an elite boston high school. and, an extremely rare albatross sighting. let's get these dayquil liquid gels and go. but these liquid gels are new. mucinex fast max. it's the same difference. this one is max strength and fights mucus. mucinex fast max. the only cold and flu liquid gel

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boston high school at the center of diversity and politics is center of a controversy after students began a social media campaign alleging racial incidents on campus. kenneth craig reports. >> all right, every single social media. >> reporter: the two created this youtube video their goal

was to draw attention to allegations of racism at their elite school, boston latin which they say had been ignored. the students claim underlying racial tensions in the hall ways and online ramped up when darren wilson was not indicted in the shooting death of michael brown. >> it made students of color feel really uncomfortable, students they sit next to in class every day, who they see in the hallway, whose locker is next to them said and thought these things. >> reporter: among their claims they say school officials did not reprimand students who used racial slurs at school. they're now encouraging other students to join the conversation. >> that video has now gone viral and the discussion is expanding. boston mayor marty walsh is supporting them. >> the experiences that our kids have shouldn't be racism. >> reporter: the district is investigating. boston latin is the oldest public school in the country,

considered a top feeder school for the ivy league with long list of prestigious graduates. 22 years ago roughly 23% of the student body was black. today african-american students make up less than 9%. >> whatever happens we defini definitely are going to be holding administration accountable to make sure these things in the future. >> the head master laid out a six point plan to address the issue. jeff the conversation has taken off with students joining discussion from other boston schools. >> kenneth craig, thank you very much. up next here, what soda come pans are doing to improve flat sales.

soda sales fizzled 14% in

the past decade. cola companies are making moves to turn things around. pepsi is opening its first rest rauntd threst -- restaurant. here, fighting this by selling smaller cans? >> yes, it is working. considering it portion control. i think a lot of americans are trying to cut down on their sugar. they're actually willing to pay more for a smaller size. coca-cola says in the first nine months of last year small can sales were up by 15%. since 2011, large sales are down by 5%. so, actually stemming the tide of sliding sales, the smaller containers. >> smaller containers. and $4 billion in 2016. >> a retro campaign. it is aimed at both millenials and boomers. we don't know whether it will work. they're throwing a lot of money at it. pepsi going old school. sponsoring the super bowl halftime show again.

this really does seem to work. combination of the nfl and pepsi. stores say they actually, drive traffic into the stores. pepsi is happy they sell more product. also trying new ideas like this restaurant. >> let's talk about this, pepsi restaurant? >> not called the pepsi restaurant. called kola house. and everything is themed around the kola nut, the basis for the sodas. what's really funny when you look at some ingredients here, kind of goes pretty far afield. you can get vodka-infused with kola bitters. get your meat drizzled with kola truffle oil. a far cry from pepsi and chips and dip, but maybe it will work. we'll have to wait and see. >> the next generation. jill, thank you very much. thank you. a hole in one on a par 4. it is the first time that has happened in the history of the lpga. three under par is an albatross

or double eagle. jang was pretty excited you,,,,,

just as invigorating. >> cheer and a rousing song. a 32-year-old tradition is under way. the grueling 383 sled dog marathon. the route is extreme, rugged terrain in the dead of a north minnesota winter. >> you have to be tough. >> trusting your dogs. >> preparing for the race means months of vigorous training. >> good girl. >> no one knows that better than colleen wallen. >> they all have personalities. all smarter than all of us put

together. >> reporter: wallen has competed 15 times and turned the race into a family affair. >> right in our own backyard. >> reporter: training usually starts in september. wallen's team of dogs, run 100 miles each week. while eating 4,000 calories of meat each day. that meat is expensive. multiply by a dozen dogs, it is an investment. fewer and fewer mushers are willing to spend the time and money required to run long races. this year, less than half participated than a decade ago. for wallen and her family it goes beyond the trail. >> it is very moving. very spiritual. great time to get your family outdoors. and the crazy dogs. >> reporter: a relationship rooted in deep tradition. now, up to the future generation to stay on course. >> come on, guys. that is the "overnight news" for monday. for some of you the news

continues. check back later for the morning news and "cbs this morning." from the broadcast center in new york city.

this is the cbs overnight news. >> ted cruz with

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the only. >> reporter: from its office in florence, massachusetts, represent us brought together an unlikely alliance. the group's advisers include republicans, democrats, prominent members of occupy wall street and the tea party. even disgraced lobist jack abramoff who served several years in prison after serving time for conspiracy so bribe members. the political director of represent us. do you find that this is a bipartisan issue? >> i'm a republican. and conservatives are fed up with the amount of corruption, the fraud, waste and abuse in government. we're all essentially paying a corruption tax because of those problems in government, so we

want reform. >> reporter: represent us wants to stop elected officials taking money from special interests they regulate. bar them from taking jobs as lobbyists after leaving office, at least for several years, limit their donations from lobilob lobbyist and force organizations to disclose their donors. >> we know politicians are spending most of their time raising money, listening to donors. >> reporter: in november, represent us backed reforms passed in maine, seattle and san francisco. and there are plans for more ballot initiatives this year. >> hi -- >> reporter: honest gill is not actually running and you can't actually vote for him, nor could you in the 2014 kentucky senate race. >> i have a deep-seeded love for kentucky that's directionally proceed possessional to how much money i raised from then, 25%.

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tomorrow is groundhog day. they will wake a groundhog from hibernation. the tradition started in punxsutawney, pennsylvania, in the 1800s, but for one town in wisconsin, the whole event almost ended last year. here's steve hartman. >> reporter: when you think of groundhog day, you probably don't think of sun prairie, wisconsin, but there's as much passion here as punxsutawney. they have a wooden woodchuck in the town square. the local bakery sells groundhog kaction. in fact, the only thing they're missing is a real groundhog. this was the sun prairie groundhog up. may remember him from last year when then-mayor lent him his ear and he took it. >> he suggests -- he says that -- that he didn't see his

shadow. >> reporter: shortly after chewing his way through the mayor's ear, he chewed has way through a metal cage and escaped. naturally, the town wanted a replacement woodchuck. who wouldn't f a woodchuck could be found, which apparently is easier said than done. >> you cannot capture it to exhibit it. >> reporter: sun prairie's groundhog day event planner -- >> memorabilia from years past. >> reporter: she says they started celebrating in 1949 using groundhogs they caught. now it's not so easy getting a live groundhog. >> it becomes very complicated. >> reporter: there's more than one license? >> yes. >> reporter: she says you need one from the state, one from the federal government, and if you can't get a certified groundhog breeder in your area -- >> so then you would need an import license. >> we're going to be talking about the groundhoger is moeb -- >> reporter: you new mayor says it's hardly worth the effort. not just because of all the red tape or because he's concerned about his own ears. he says it's simply not humane

to hold up groundhogs like we do. >> i don't like that. >> reporter: his proposal? >> he's a live animal. >> reporter: to chuck the entire woodchuck idea completely. >> someone in a costume. >> reporter: a gerbil? >> he's domesticated so i wouldn't. >> february 2nd isn't gerbil day. it's a groundhog. >> that's the way it's always been and that's the way i like it. >> reporter: around sun prairie the consensus is clear. >> what would you think of a groundhog celebration with no groundhog? >> it would just be winter from there on. >> reporter: ahh. and you were worried about climate change. fortunately, ty did find a loaner groundhog for next week's celebration, which gives her a whole year to find a permanent replacement and gives the mayor time, too. how would you propose celebrating thanksgiving? to find a way to balance on his soap box.

steve hartman, on the road, in sun prairie, wisconsin.,,,,,,,,,

it's one of the nhl's enforcer, john scott has spent plenty of time on the ice dolling out punishment and fighting. so, when fans voted him a captain in yesterday's all-star game, some thought it might hurt the league's image. here's con tessa brewer. >> reporter: john scott was never supposed to land in the all-star game. he's an enforcer, a so-called goon, hired for his muscle, not his hockey skills. >> i'm not normal all-star. i'm more of a grinder in the lineup, kind of fourth line guy. i obviously fight and do pretty well at that. >> reporter: pat iverson covers the nhl for sb nation. you wrote that john scott is bad. if he's so bad, how did he end up as captain of the pacific team at the all-stars? >> well, the nhl left the fan vote up to the internet. why don't we try to pick the

worst player we could possibly think of, and that happened to be john scott. >> reporter: the nhl apparently wanted hockey stars in the all-stars, not brawlers. in fact, the league is trying to distance the game from fights on ice. they and his team, arizona coyotes, asked him to bow out. he wouldn't. >> my gm said we traded taught montreal canadiens. it was a shock. >> reporter: traded and sent to the minors in newfoundland which meant he was no longer able to play in the all-stars. how did the fans react to the john scott trade? >> it was swift and very -- very angry. his wife is pregnant with twins and the little guy getting kind of shoved around by the big wgsg of the league. >> reporter: so the nhl backtracked, back to the position fans put him in. he'll play and, perhaps, even

win. that would mean he'd take home more than $90,000 in prize money. that might come in handy now that his major league career's in jeopardy. >> this is it. i can maybe step away from hockey. i have a degree in engineering. >> that's a train. >> reporter: for now, the unlikely all-star is focused on enjoying his far-fetched moment in the spotlight. >> it's kind of weird that i'm here and definitely kind of an anomaly. >> reporter: maybe, but exactly how hockey fans like it. cbs news, new york. that is the overnight news for this monday. for some of you, the news continues. for others, check back a little later for the morning news and "cbs this morning." from the broadcast center in new york city, i'm jeff glor. ,,

captioning funded by cbs captioning funded by cbs it's monday, february 1st, 2016. this is the "cbs morning news." countdown to the caucuses. republicans and democrats are making a last dash at undecided voters in iowa, while new polls show a change at the top. two virginia tech students are arrested in the death of a 13-year-old girl who disappeared last week. the charges they face and the link between the suspects and their victim. the reason i pulled you over today, i just wanted to know what is the emergency? >> a role reversal on a miami highway. why a driver pulled over an officer.