It’s easy enough to tsk-tsk over such sentiments, cite a long tradition of American xenophobia and racism, and so on. In truth, however, most of this — however hair-raising — remains bluster at this point. The real “xenophobic” action has taken place in distant lands where the U.S. Air Force reigns supreme, where a country that once created the Marshall Plan to raise a continent leveled by war can no longer imagine investing in or creating anything but further vistas of destruction and destabilization.