French President Francois Hollande attends a ceremony during a visit to the French anti-terror security forces (Sentinelle) at Paris police headquarters, one year after the killings at the French satirical newspaper Charlie Hebdo, in Paris, France, January 7, 2016. France this week commemorates the victims of last year's Islamist militant attacks on satirical weekly Charlie Hebdo and a Jewish supermarket with eulogies, memorial plaques and another cartoon lampooning religion. REUTERS/Martin Bureau/Pool