Authorities are on high alert and security has been stepped up after a terrorist attack by Islamist gunmen on the Paris office of Charlie Hebdo, a satirical magazine, that left at least 12 people dead, including two policemen; some 20 others were wounded. The attackers escaped, and officials are reportedly looking for three gunmen. A car blew up blew up in front of a Paris synagogue. President Hollande said authorities had foiled other terrorist attacks in France in recent weeks. Thousands of people in Paris, Lyons, and other cities across France rallied in support of freedom of expression and solidarity with the victims of the attack.
