LOS ANGELES, CA - MAY 02: Transportation Security Administration (TSA) agents screen passangers at Los Angeles International Airport on May 2, 2011 in Los Angeles, California. Security presence has ... more 
LOS ANGELES, CA - MAY 02: Transportation Security Administration (TSA) agents screen passangers at Los Angeles International Airport on May 2, 2011 in Los Angeles, California. Security presence has been escalated at airports, train stations and public places after the killing of Osama Bin Laden by the United States in Abbottabad, Pakistan. (Photo by Kevork Djansezian/Getty Images) less 
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Getty Images | Photo By Kevork Djansezian / Getty Images
Mon, May 2, 2011 4:54 PM EDT