thank you. some other big news up on the of the press conference is what president biden said about russia invading ukraine, and the consequences that will follow. it comes as the president's secretary of state is in the former soviet republic and will soon meet with his russian counterpart in geneva. we get the latest on the rising tensions from cbs' margaret brennan. >> reporter: with russian troops now in belarus for war games, u.s. officials are increasingly concerned that ukraine's neighbor may help vladimir putin attack. >> my guess is he will move in. >> reporter: president biden said today he expects putin to defy him, but at great cost. >> so this is not all just a cake walk for russia. militarily, they have overwhelming superiority, but they'll pay a stiff price immediately, near-term, medium term, and long term if they do it. >> reporter: ukraine now says there are 127,000 russian troops encircling it, giving putin the