'Extremely Sophisticated' Explosives Passed Through Cargo Screening Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Airline workers load luggage and cargo into a US Airways passenger plane at Los Angeles International Airport on October 30, 2010 in Los Angeles, California. ( Kevork Djansezian / Getty ) Produced by Kal Elsebai Produced by PRI and WNYC