Right now I've been accepted to the International Affairs: U.S. Foreign Policy degree at American. The nice thing about the dual masters program, it seems, is that you don't have to apply for it until towards the end of your first year at American. Then, if you decide it seems to be fit for you, you can apply and spend your second year in another country.
Thanks for the great info about Korea, by the way! Yes, I definitely think it looks like a great country to study in. I've spent time in both Japan and China before, but never Korea. And a decrease in cost of living would always be nice of course
Which degree/country were you interested in? I'm trying to figure out if there would be any downsides to doing this program, but I've yet to think of any. I think you could make the argument that you will lose out on taking advantage of job connections/networking in D.C. by being away for a year. Also, there could be some difficulty coming back and trying to find a job if you haven't already got one lined up.