The deadliest stance since protests began. At least 25 have been killed. Were hearing 250 injuries. Americans are being told to get inside and stay inside. Nine people were injured when a cafe pacific airliner encountered severe turbulence. The boeing 747 was en route to hong kong when it was thrown around over northern japan. The big thaw pushing the mercury up from coasttocoast. Just hours before indiana basketball, a 50pound piece of metal fell from the ceiling into the stands. Winning gold in the giant slalom. David wise has won gold in the inaugural running of mens ski halfpipe. Alex segal, on the podium in sochi. All the hard work all the sacrifices i made, and every moment was absolutely worth it. The sinkhole that trapped the portland, oregon, woman and her little girl. A passerby helps. Neither one was hurt. These two crashed into a Convenience Store in houston. A benchclearing brawl during a baseball game in cuba. The melee erupts. A short fourday trip to the region. And all that matters. I might go just ride some powder and hang out. You ever refer to it as pow . You ever drop it and cut some sick lines . Yeah, always. [ laughter ] always. My man. On cbs this morning. Say it aint so, theres a national clown shortage. According to the world clown association, membership has plunged 29 . A drop in clowns is mostly due to one fatal car accident. [ laughter ] this mornings eyeopener is presented by toyota. Lets go places. Welcome to cbs this morning. Good morning, norah. Hey, good morning to you, charlie. We begin overseas as the world watches russias Winter Olympics, a violent crisis unfolding next door in ukraine. Antigovernment protesters are confronting police for a second day. This is a live look from kiev this morning. Ukraines Health Ministry says 25 people are dead in the violence that began flaring yesterday. In response some european nations are threatening the ruling government with sanctions. Swedens foreign minister says ukraines president , quote, has blood on his hands. But russia is blaming the opposition, asking u. S. And other countries to stay out. Holly williams is above Independence Square in keev where both sides say theyre ready to escalate the violence. Holly, good morning. Reporter good morning, charlie and norah. This is the worst violence witnessed in ukraine since the country broke free of the soviet union 22 years ago. Ukrainian riot police stormed Independence Square. The symbolic heart of kiev which has been occupied by antigovernment protesters since november. Thousands of demonstrators stood their ground at the center of ukraines capital descended into chaos. The police broke down protesters barricades with armored personnel carriers. And fired tear gas and stun grenades into the crowd. The demonstrators fought back with rocks, fireworks, and molotov cocktails. [ explosions ] as street battles raged into the night casualties were suffered by police and protesters. There were acquisitions that live ammunition was fired, though both sides denied it. These protests began peacefully in november when ukraines government rejected a trade agreement with europe in favor of a 15 billion financial bailout from russia. But after enduring decades of soviet rule many ukrainians are fearful of moscows influence. The demonstrators also accuse their government of corruption and hope closer ties with europe will bring greater democracy. Now, those divisions have turned bloody and talks last night aimed at finding a political solution quickly collapsed. Opposition leader said it was the government that was unwilling to compromise. Im very unhappy, because there was a discussion, and they dont want to listen to opposition. Reporter but in an address to the nation president yanukovych said lines had been crossed when people had been called to arms. Russia has close links with ukraines leaders, but the u. S. And europe have been critical of the government here for the way its handled these demonstrations. Now, in language that is reminiscent of the cold war, theyre blaming each other for interfering in ukraines politics. Charlie and norah . Holly williams, thank you. This morning, pope frances is asking both sides to end the fighting, so is the Obama Administration. The president left the white house a short time ago. He is flying to a summit of north american leaders in toluca, mexico. Major garrett is already there to follow this story. Major, good morning. Reporter well good morning, norah and charlie, and to our viewers in the west. For the time being, the white house has assigned the ukraine problem to Vice President joe biden. Three times since january 23rd, and most recently yesterday, biden called and talked to ukrainian president Viktor Yanukovych and urged him to deescalate the violence and begin negotiations with opposition protesters. That obviously has not happened and concern over the bloodshed is rising at the white house and other european capitals. Street fighting in kiev doesnt directly influence American Economic or political interests in the region but the tugofwar over ukraines future does, at least broadly. Ukraine had been trending toward the west and greater democracy, but russian president Vladimir Putin has reversed that, offering economic incentives and other issues to yanukovych, the leader that many street protesters believe is not only oppressive but corrupt. The message from Vice President biden, tougher economic sanctions are coming if the situation does not improve. Here in toluca mexico where the president is due to arrive about 10 00 a. M. Pacific time the president s not expected to address the ukrainian crisis but deal instead with issues of trade, investment, and energy. Charlie and norah . Thanks, major. This morning, another group of Airline Passengers recovering from injuries after turbulence scared them a flight from San Francisco to hong kong. The trouble started over northern japan. As elaine reports, one person aboard the 747 had to be carried out on a stretcher. Reporter these images apparently taken from inside the cafe pacific flight show the aftermath for 350 passengers who endured two minutes of terror as their plane was rocked by severe turbulence last night. Passengers said it felt like being on a roller coaster. Extremely scary, because it was throwing you up and down sideways. Quite a few people in front of me were thrown up from their seats. A few of them even hit the ceiling of the aircraft. We had a couple of the baggage bins opening up and the bags flying out. Reporter the flight continued for another six hours after the incident and landed safely in hong kong. At least nine were injured eight were taken to local hospitals. One crew member is reportedly in serious condition. This comes just a day after a flight from denver to billings montana, also experienced severe turbulence leaving one Flight Attendant in intensive care. Bleeding pretty badly, and they cant get it to stop so were requesting medical attention at the gate. Reporter passengers described a similar scene. There was a lot of screaming and a lot of a lot of hollering and things like that going on. Reporter Cathay Pacific, a Hong Kongbased company, says safety is their First Priority and theyre working with local authorities to investigate the incident. For cbs this morning, elaine quijano, new york. It is warming up this morning in areas battered for weeks by winter storms. The weather change will give states a chance to stock up on needed supplies. A barge carrying 10,000 tons of road salt is expected to arrive in new jersey next week. We reported yesterday that shipment was held up because it has to come in on an american ship. Local officials are facing new problems. Terrell brown is in raritan, new jersey, in an area damaged by all of the snow. Good morning. Reporter good morning to you. And good morning to the viewers in west. These businesses have been closed since friday because under the weight of the snow and ice the roof on this building collapsed. It is a problem weve seen all across the state and certainly all across the country, as this record winter has taken a toll on the nations already aging infrastructure. The roof on this vacant mill in paterson, new jersey, was no match for the snow. It collapsed sunday forcing the evacuation of nearby residents. About 30 miles east in sparta fears about the roof on one school triggered the closures of all the others. Knowing the amount of snow and ice that are on all of our School Buildings right now that prompted me to have an early dismissal today. Reporter this has been the snowiest january and february ever recorded in new york city. And chicago, which has seen only three winters with more than 70 inches of snow, is already nearing 67. That means potholes. Lots of them. As ice and salt eat away at road surfaces. Underground, the concern is over ruptured pipes. Detroit last week when a water main broke. And in chicago these cars were literally frozen in place by a pipe that burst down the street. And it all adds up. St. Paul minnesota, which typically goes through four snow emergencies each winter has already declared seven. The city is 2 million in the hole and counting says the mayor, chris coleman. At some point, all those ultimately are coming out of the taxpayers pockets, and we have to balance though out as well as we can. Reporter coleman, the president of the National League of cities says the severe winter has aggravated existing infrastructure problems. Were seeing the patterns the challenges on the infrastructure on a daily bhasasis and we need to get more proaktdive. Reporter and this winter continues to break budgets as crews work to get damage like this fixed before the next big storm. And by the way thunderstorms are next in the forecast, which means the next big problem could be ice. Charlie, norah . Lots of flooding terrell, brown, thank you. Big news from the Winter Olympics. If you dont want to hear turn away now. The medal count shows russia leading the United States just ahead of the netherlands and norway. But russia will not win a medal in hockey after losing this morning to finland. Alphonso van marsh is in sochi where u. S. Skiers struck gold again today. Alphonso, good morning. Reporter good morning, norah. Good morning, charlie. 29yearold american from park city utahs ted liggote has won the giant slalom. Its the first gold medal for america in the alpine event. Americans are having an impressive streak. Team usa has won at least one medal every day during the winter games in sochi. Freestyle skiing halfpipe made its olympic debut. 23yearold american david wise finished first with stunning double cork and big air. Taking home the firstever olympic gold medal in the event. David wise has won gold its a huge huge accomplishment, and im just so honored and humbled by the whole experience. Reporter the fog was back while heavy snow and freezing rain in the mountain venues created challenging conditions for the athletes. In the womans giant slalom slovenia won the gold medal. Celebrating with a swim in the snowturnedslush at the bottom of the run. People are still buzzing about the judging in the ice dance final. Gold Medal Winners meryl davis and Charlie White took time to address the controversy. Were not judges. Were skaters. And i think whats gotten us to this point standing on top of the olympic podium is really realizing that and focusing on what our job is. Metal contention reporter in the snowboard cross, deibold secured a bronze medal. Four years ago in vancouver, deibold was a wax tech helping olympic boarders prepare their equipment. Now, hes a medalwinning boarder himself, and the reaction of his teammates says it all. Now, back onto the ice, charlie and norah. In a few hours, figure skating will be back in the spotlight with the womans Short Program getting under way. So by the end of the day, team usa could have a few more medals. Back to you. All right, alphonso van marsh, thank you. This morning both sides in the fight over boosting the federal minimum wage have new ammunition. On tuesday, the Nonpartisan Congressional Budget Office released a report on the democrats plan. It estimates a 10. 10 minimum would increase the income of nearly 17 million americans, and it would lift 900,000 workers out of poverty. But those gains could come at a steep cost. The elimination of 500,000 jobs. Jon hilsenrath is the chief economic correspondent for the wall street journal, and he is in washington. John, good morning. Good morning, charlie. What does this report add to the debate over the minimum wage . I think it adds a very important point, which you frankly dont get enough of in washington, which is that with any policy and particularly with this minimum wage policy there are tradeoffs. And republicans and democrats when they argue about these things, they dont acknowledge the tradeoffs. As you said in your introduction, 900,000 people could belifted out of poverty but 500,000 people could lose their jobs. And so what we face with the minimum wage debate is a choice. Is it worth helping the 900,000 frankly, 16. 5 Million People who could see their wages increase when the cost is a very discrete job loss for hundreds of thousands of people . Theres a lot of politically with this report because the republicans and democrats are pushing the raise in minimum wage to run against republicans in this election year. Yesterday, the white house came out and said, look, this does not reflect the consensus view of economists that the minimum wage has been studied for years. What do you take about their argument . You know, i think you have to look at the back of the report. I counted up 61 references to different outside studies that were done on the minimum wage and its effects on employment and income. It looks to me like the cbo did its best job of coming with a down coming up with a downthemiddle point of view and i think the white house response in part reflects the nature of the debate in washington. Republicans are only, you know, emphasized the negatives. Democrats are only going to emphasize the positives. But in truth, there are tradeoffs, and thats what the public has to understand. Jon, thank you so much. Now to the political payback scandal engulfing new jersey governor chris christie. This morning, two key figures refused to cooperate with an investigation. A legislative panel subpoenaed information and cell phones from bill acceptseepian and binge et ann kelly. They said no. Theyre looking into the lane closures of the George Washington bridge last year. The leader of venezuelas cantey government protesters is due in court today. A defiant leopoldo lopez, surrounded by thousands of supporters turned himself in yesterday. The government blames lopez for leading a demonstration that erupted in deadly confrontations with police last week. Venezuela claims the Obama Administration is siding with student protesters. It ordered three u. S. Diplomats to leave the country. Time to show you some of the mornings headlines. The Washington Post says the government wants to build a National License plate database. The homeland securitys departments plan would gather plates from Law Enforcement and commercialtracking systems. That could create more than 1 billion records. Officials say the information would be used to find immigrants who are fugitives. Usa today looks at claims General Motors knew about a dangerous problem in its chevy cobalt years before issuing a recall. The lawsuit says gm learned as early as 2004 that cobalt engines can shut off unexpectedly. The stall also cuts off power steering and brakes. In last weeks recall, gm said it knows of at least six people who died in cobalt crashes linked to the problem. The wall street journal looks at targets data breach crisis trusting the retail giant is at an alltime low after the massive cyber theft. Target stock is down 11 . It could lose billions of dollars in sales and by repaying banks. The milwaukee journalsentinel says a guard member is suspended. Terri posted this picture on her instagram account. It shows soldiers goofing off in front of a flagdraped casket. We put the fun in funerals. The coffin was empty. Cbs sacramento says nestle wants customers to return the hot pocket. They contain a small amount of recalled beef, processed at the rancho feeding company in california. The hot pockets affected are philly steak with cheese and croissant crust, philly steak and cheese. If Portland Oregon a woman fell down a 20foot sinkhole in her backyard. She heard her dog barking last night, went out to investigate, and then fell in. Local officials think the sinkhole may have been part of an old well. Both the woman and her dog were rescued. Neither one was seriously injured. A cold front diving into the bay area falling apart when it gets here, but left behind a few scattered light showers. Those are tapering off now, though. And well be moving out of town, leaving behind lots of sunshine. These temperatures, well, fairly mild. A little windy though as you approach the coastline. 57 degrees in pacifica. 61 in San Francisco today. And about 64 mostly sunny this afternoon in san jose. Speaking of sun, plenty of sunshine coming our way. Maybe even some 70s over the weekend. Announcer this National Weather report sponsored by splenda no calorie sweetener. I think sugar. Say splenda. Real concerns about recreational marijuana. Well take you inside a lab that found contamination in some of colorados legally approved pot. The news is back in the morning here on cbs this morning. Stay tuned for your local news. This portion of cbs this morning sponsored by cadbury cream eggs. Everyone wants to be the cadbury bunny. Cause only he brings delicious cadbury creme eggs, while others may keep trying. Nobunny knows easter better than cadbury wisest kid . The girls a