PARIS, FRANCE - JANUARY 07:  A person holds an issue of 'Charlie Hebdo' as crowds gather at 'Place de la Republique' during a vigil following the terrorist attack earlier today on January 7, 2015 in Paris, France. Twelve people were killed, including two police officers, as two gunmen opened fire at the offices of the French satirical publication Charlie Hebdo.  (Photo by Marc Piasecki/Getty Images)