thing things can whittle away but it will take larger set of sanctions and a bigger commitment from a broader set of people and institutions for them to work. how far can these sanctions be raechted up? we talk about the ping pong back and forth but does the administration and european union have a whole host of other th things they could do? i think so. it depends on how far putin goes but a number of things they can do both individually and in tandem. let me list a few of them. ukraine has $30 or $40 billion in debt to russia. can declare an odious debt. it can basically cancel all debt service and claims to repay russia because of the losses in crimea. if european institutions support that claim, that means ukraine can continue borrowing in international markets and substantially relieve its debt