Bound to fail sometimes?

Writing in the New York Times, David Brooks says that the anti-terror measures taken by the United States since 9/11 were 'bound to fail sometimes,' and decries many of the reactions to last week's attempt by Umar Farouk Abdulmutallab to blow up a plane over the skies of southern Canada and Detroit. There have been outraged calls for Secretary Janet Napolitano of the Department of Homeland