People hold posters reading ‘I am Charlie’ as they gather to express solidarity with those killed in an attack at the Paris offices of weekly newspaper Charlie Hebdo, in Nice, southeastern France, Wednesday, Jan. 7, 2015. Three masked gunmen shouting “Allahu akbar!” stormed the Paris offices of a satirical newspaper Wednesday, killing 12 people, including its editor, before escaping in a car. It was France’s deadliest postwar terrorist attack. (AP Photo/Lionel Cironneau)