it is vital currency inphon relations and international and allied commitments. >> it must mean something. what does it mean? >> well, the president is in the business of throwing red lines and saying if you cross this line, you will be held accountable. we will react to that. if they cross a line and you do nothing, then, obviously, you have lost credibility, not only with that particular adverse satisfactory. you have lost credibility with the iranians who are now marching, on their way to marching to a nuclear weapons capability, credibility with other parts of the world, pivoting to the asia pacific region. other areas are looking to the united states to keep that region stabilized by their fear of the rise of chinese power. so what we do here does have implications globally in terms of what role the united states is going to continue to play in providing for a stable environment globally. so what happens here does have consequences. a failure to take action has consequences but taking action also has consequences in terms of what's the reaction going to be? what will the russian ship