Recent days have been full of continually unfolding reports about a new intercepted underwear bomb intended to be carried aboard a U.S.-bound plane by an al-Qaida agent. That agent, said to be British, turned out to be working simultaneously with Saudi and U.S. intelligence, and the bomb never got near a plane. But as I prepared last week to board a flight to Alaska, where I would be participating in a conference devoted to the ethical work of Jewish philosopher Emmanuel Levinas, I couldn’t help but wonder what role this newly acquired knowledge will play in upcoming discussions about airport security and the effectiveness of the Transportation Security Administration (TSA).