As an American with lots of time abroad, I can second this. Americans are extremely uptight when it comes to race, but that might be a good thing. With all of the talk in America about race, you might start to expect, as I have caught myself doing several times, that the US must be a race relations disaster. Upon returning, I was shocked to rediscover that it wasn't any worse than the other places I'd been, and in many cases better.

The thing I really like about Americans, is they're just don't throw up their hands and say "oh well, that's the way its always been, can't do anything to change it now." (The gypsies definitely come to mind here) For better or worse, they try.