A Syrian islamist rebel shows an exploited mortar in the Al-Amriyah neighborhood of Aleppo, Syria, Wednesday, Jan. 15, 2013. The United Nations estimated that more than 400,000 people have been killed in Syria's 60-month-old uprising against authoritarian rule, a toll one-third higher than what anti-regime activists had counted. The U.N. human rights chief called the toll "truly shocking." (Andoni Lubaki)