Five undercover agents posing as passengers and would-be terrorists manage to get weapons through security checkpoints at Logan Airport in Boston. The agents, sent by Department of Homeland Security inspector general Clark Kent Ervin, take knives, a bomb, and a gun through checkpoints in different terminals. The Transportation Security Administration says that such exercises are useful for spotting holes in airport security, but the Boston Globe writes, “The fact that such weapons made it past checkpoints two years after an overhaul of airport security is likely to be seen as a serious indictment of the government’s efforts to protect air travel from terrorists.” Ervin then orders similar tests at 15 airports, but the problems are also apparent at some of these other airports. For example, at Newark, from which Flight 93 departed on 9/11, screeners miss one in four test bombs or weapons. [Trento and Trento, 2006, pp. 171-2]