Ineffectiveness Of TSA Airport Screening

Charles C. Mann has written an interesting article in Vanity Fair on the uselessness and waste of taxpayer dollars of TSA screening at airports.

From Vanity Fair, "Smoke Screening" by Charles C. Mann:

To a large number of security analysts, this expenditure makes no sense. The vast cost is not worth the infinitesimal benefit. Not only has the actual threat from terror been exaggerated, they say, but the great bulk of the post-9/11 measures to contain it are little more than what [ Bruce] Schneier mocks as “security theater”: actions that accomplish nothing but are designed to make the government look like it is on the job. In fact, the continuing expenditure on security may actually have made the United States less safe.***From an airplane-hijacking point of view, Schneier said, al-Qaeda had used up its luck. Passengers on the first three 9/11 flights didn’t resist their captors, because in the past the typical consequence of a plane seizure had been “a week in Havana.” When the people on the fourth hijacked plane learned by cell phone that the previous flights had been turned into airborne bombs, they attacked their attackers. The hijackers were forced to crash Flight 93 into a field. “No big plane will ever be taken that way again, because the passengers will fight back,” Schneier said. Events have borne him out. The instigators of the two most serious post-9/11 incidents involving airplanes— the “shoe bomber” in 2001 and the “underwear bomber” in 2009, both of whom managed to get onto an airplane with explosives—were subdued by angry passengers.***As I waited at security with my fake boarding pass, a T.S.A. agent had darted out and swabbed my hands with a damp, chemically impregnated cloth: a test for explosives. Schneier said, “Apparently the idea is that al-Qaeda has never heard of latex gloves and wiping down with alcohol.” The uselessness of the swab, in his view, exemplifies why Americans should dismiss the T.S.A.’s frequent claim that it relies on “multiple levels” of security. For the extra levels of protection to be useful, each would have to test some factor that is independent of the others. But anyone with the intelligence and savvy to use a laser printer to forge a boarding pass can also pick up a stash of latex gloves to wear while making a bomb. From the standpoint of security, Schneier said, examining boarding passes and swabbing hands are tantamount to performing the same test twice because the person you miss with one test is the same person you'll miss with the other.***Staffing the airport checkpoints, at least in theory, are “behavioral detection officers,” supposedly trained in reading the “facial microexpressions” that give away terrorists. It is possible that they are effective, Schneier says—nobody knows exactly what they do. But U.S. airlines carried approximately 700 million passengers in 2010. In the last 10 years, there have been 20 known full-fledged al-Qaeda operatives who flew on U.S. planes (the 9/11 hijackers and the underwear bomber, who was given explosives by a Yemeni al-Qaeda affiliate). Picking the right 20 out of 700 million is simply not possible, Schneier says.