Mother of Palestinian prisoner Mahmoud Khasib poses with his picture at her house in the West Bank city of Ramallah, on Dec. 17, 2011. Mahmoud Khasib is one of 550 Palestinian prisoners who will be freed on Sunday from Israeli jails, in the second phase of a deal reached with the Islamic Hamas movement in October to free Israeli soldier Gilad Shalit. [Xinhua/Fadi Arouri]