There have been several cases of either booting musicians out of the country for visa problems or just plain not letting them in recently, it seems. A few months back the Center for Cultural Exchange in Portland, Maine had to cancel a concert due to the group not being allowed into the US for "security" reasons. I can't remember the name or nationality of the group (I think they might have been Cuban), I just remember being disgusted and incredulous. The only danger I can see is that the American people might figure out that "they" are just like us, just normal folks. Oh, horrors! Here comes the end of "Western Civilization" as we know it! Quick, get out the plastic sheeting and Duck tape!