Caucasians? I always find that quaint expression Americans use a bit bizarre. I can't understand why they don't go the whole hog and use the term Ethiopian to refer to black Americans. After all:

"The term Caucasian meaning the so-called white or European race originated with Johann Frederich Blumenbach (1752-1840), a German professor of natural history in Göttingen...Based on skull measurements, he classified five races: American, Caucasian, Ethiopian, Malayan, and Mongolian."

All these different people insisting on speaking their own different languages, and most often time that won't be English... Why, you might as well be back in Europe. And that's not so bad, honest.