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Here's a fact about the underwear attack that you might have missed in the media shoutfest: it failed. It failed, first of all, because Umar Farouk Abdulmutallab was just one terrorist. Once upon a time, al-Qaeda's modus operandi was to launch multiple, simultaneous attacks. That way, even if one attack failed, the entire operation wouldn't. On 9/11, the network deployed 19 hijackers on four planes; on 12/25, by contrast, it managed only one. Second, the underwear attack failed because Abdulmutallab wasn't particularly well trained. The 19 Sept. 11 hijackers were personally selected by Osama bin Laden from the tens of thousands of potential killers who went through al-Qaeda's Afghan training camps in the 1990s. The ringleaders got extensive training on the design of airplanes and the...