A man holds a cartoon as people gather on Union Square January 7, 2015 in New York in memory of the victims of the attack on the offices of the satirical weekly Charlie Hebdo in Paris.   US President Barack Obama condemned the 'cowardly, evil' assault on a French satirical newspaper that left 12 dead, pledging US assistance to Paris to bring the attackers to justice.   AFP PHOTO / DON EMMERT        (Photo credit should read DON EMMERT/AFP/Getty Images)