In a chilling conversation recorded last March by Milan police, a pair of alleged al-Qaeda operatives discussed two ways to launch a rudimentary but deadly chemical attack. One method, Tunisian-born Essid Sami Ben Khemais boasted to his comrade, required an unidentified "efficient" product that could be stored in tomato cans. When released, it would suffocate its victims. At another point in the bugged telephone call, Ben Khemais refers to a "gas bomb," seemingly a much more lethal device, though apparently just as makeshift.
According to transcripts of the conversation contained in Milan court documents, Ben Khemais said...