Some of those who rail against illegal immigration can dish it out, but they can't take it. Since most illegal immigrants come from Mexico or other parts of Latin America, critics sometimes say the sort of crude things that give the debate its anti-Latino flavor. But let someone call them on it and do they ever get defensive. Speaking to supporters in Palm Beach last week, Barack Obama blasted a couple of media personalities by name. “A certain segment has basically been feeding a kind of xenophobia. There's a reason why hate crimes against Hispanic people doubled last year,” Obama...