during a stop on his asia tour friday, president obama again throwing down the gauntlet to russi russi russisian leader vladimir putin. >> he has to make a decision is he willing to see the russian economy that was already weakened, weakened further >> that followed a call with counterparts of allies nations. standard & poor's downgrading russia's credit rating to bbbb, to bbbb-minus. >> if sanctions increase, then further deterioration of the external profile might also be evidenced in the next 24 months. >> u.s. leaders have underscored diplomacy first, some sanctions, but steered away from suggestionsover any lethal military force. as clashes grow, could that now be in the offering? the senior national security fellow at the new america foundation joins us again this evening. doug talk to us a little bit about what the indications are from the u.s. military? what sort of presence is already in place? >> what has been sent over so far is a squad rant of fighters to poland. that's a good signal. but on the ground side all we have sent are a few companies of paratroopers, about 80 to 100 sol