“Several dozen” Iraqi insurgent bomb-makers may have been allowed to move to the United States as refugees over the years, ABC News reports, which the FBI discovered after two of them were found in Bowling Green, Kentucky, in 2009. “These are trained terrorists in the art of bombmaking that are inside the United States,” says House Homeland Security Committee chairman Michael McCaul, “and quite frankly, from a homeland security perspective, that really concerns me.” Yes, concern seems like an appropriate reaction to this news. Then again, it’s not like there has been a rash of I.E.D. explosions in American over the past few years, so maybe, (a) These fears are overblown, or (b) All the terrorists came to America, were impressed by our endless dining and entertainment options, and decided, “You know what? I actually like this place.”