Hundreds of anti-war protesters demanding a cease-fire in Gaza and calling for an end to U.S. military assistance for Israel blocked the international terminal at the San Francisco International Airport on Wednesday. Footage from the scene showed protesters carrying banners with messages such as "Permanent Ceasefire Now," "Stop the World for Gaza" and "Stop Arming Israel." An ABC News affiliate put the number of demonstrators at over 300. Airport officials said the international terminal remained open but passengers were re-routed around the activity. Activists blocked the roadway outside the airport, marched in circles and chanted slogans. (Reuters)