gettyimagesLOS ANGELES, CA - OCTOBER 30: Airline workers load cargo into an All Nippon Airways passenger plane at Los Angeles International Airport on October 30, 2010 in Los Angeles, California. The United States remains vigilant in the wake of an exposed terror plot. Packages containing explosives were sent from Yemen and addressed to synagogues in Chicago but were intercepted yesterday before they could reach their destinations. (Photo by Kevork Djansezian/Getty Images)