priority over multilateralism in a lot of ways. and this is what's happened. it's chaos. and, unfortunately, yes, we've had two years of this, and you would think we'd learn by now that going your own way isn't going to work. the lessons with coordinated response is what we need in terms of travel and other aspects of the response. >> so, with that harmonized -- you know, having harmonized international standards. you've studied w.h.o. reform. you know the challenges. i mean, is that actually realistic given that we can't even agree on much within the u.s., let alone between countries? >> yes. we are in a very difficult time. in terms of cooperation. but i would say that the hope is that coordinating action on travel actually benefits everyone. so it benefits the travel industry. it benefits travelers. and it benefits public health. and there's a win-win-win here.