I'm always struck in the united states, but how easy it has been for foreign policy experts to underestimate the power of nationalism elsewhere. That's cause the united states is a very nationalistic country in a variety of ways. So the strong nationalism here somehow creates a screen that doesn't allow policy makers in the united States to understand hat in other countries also, nationalism is a very powerful force. In china, in russia, in irach, in viadam. In all these places, nationalism is and was a central determinant of the political dynamics. And so we have it again here. And i think your work helps us to understand the way in which these things are connected