FILE - In this file photo dated Wednesday, Nov. 2, 2011, a police officer stands front of the headquarters of satiric French newspaper Charlie Hebdo, that "invited" the Prophet Muhammad as a guest editor this week, in Paris. A gun assault on the Paris offices of satirical magazine Charlie Hebdo on Wednesday Jan. 7, 2014, was the deadliest terrorist attack in France’s recent history, and joins the roll of various terror attacks in western Europe, including the 2011 firebombing of the offices of Charlie Hebdo after the satirical magazine runs a cover featuring a caricature of the Prophet Muhammad. No one is injured in the 2011 arson attack. (AP Photo/Thibault Camus, FILE)