"At least 12 people have been killed in a shooting attack on a French satirical magazine in Paris. Witnesses say masked gunmen entered the offices of the magazine, Charlie Hebdo, and opened fire. The dead include four cartoonists and two police officers. The magazine Charlie Hebdo has drawn multiple threats for its caricatures of the Prophet Muhammad. In 2012, the magazine’s cartoon depicting Muhammad in pornographic poses helped spark protests across the Middle East. The outcry forced France to close embassies and other official sites in 20 countries. Charlie Hebdo has repeatedly claimed it publishes the cartoons as a defender of free expression and against religious extremism. We are joined by two guests: Robert Mahoney, deputy director of the Committee to Protect Journalists; and Tariq Ali, a British-Pakistani political commentator, historian, activist, filmmaker, novelist and an editor of the New Left Review....."