The west coast with dangerous landslides and heavy flooding, part of a massive system sweeping across the country. Plus after the oscar, the homeless teen story leads to an Academy Award. One year later she joins us to talk about her life now. We have a lot to get to tonight. The situation in ukraines crimea region is very fluid this hour. Its also extremely dangerous. Heres what we know. U. S. Officials say they are seeing signs of troops moving in from russia. Washington is talking with its allies in europe about the consequences. U. S. Citizens should postpone all nonessential travel to ukraine. Tonight we have extraordinary video that speaks to the growing crisis in crimea. This cell phone video shows what appears to be Russian Military helicopters flying over crimea towards the city of serm ferm, one of the areas seized by the government. Al jazeera is committed to covering this story. Our indepth coverage starts at the center of the crisis. Jennifer glasse has the story from sirm