Besieged Syrians Await Aid Convoys

UN convoys in Syria are waiting for the go-ahead to deliver aid to thousands of people trapped by the fighting. We have exclusive material from Aleppo and other towns and cities under siege. Also: Apple says it will oppose an order to help the FBI break into the mobile phone of one of the San Bernardino attackers, Taiwan says China has deployed surface to air missiles on one of the disputed islands in the South China Sea, and Pope Francis shouts at a crowd in Mexico.

(Photo: A Red Crescent convoy prepares to leave Damascus for Madaya and Zabadani. Credit: Louai Beshara/AFP/Getty Images.)