FILE - In this Wednesday, Feb. 6, 2013 file photo, a Syrian woman stands amid the ruins of her house which was destroyed in an airstrike by government warplanes a few days earlier, kill

 

              FILE - In this Wednesday, Feb. 6, 2013 file photo, a Syrian woman stands amid the ruins of her house which was destroyed in an airstrike by government warplanes a few days earlier, kill
FILE - In this Wednesday, Feb. 6, 2013 file photo, a Syrian woman stands amid the ruins of her house which was destroyed in an airstrike by government warplanes a few days earlier, killing 11 members of her family, in the neighborhood of Ansari, Aleppo, Syria. President Bashar Assad has exploited his greatest advantage on the battlefield _ his air power _ to push back rebel advances and prevent the opposition from setting up a rival government in its northern stronghold. Along the way, fighter jets and helicopters bombed bakeries, makeshift hospitals and residential areas, according to a new report by a U.S.-based rights group released Thursday, April 11, 2013 accusing the regime of committing war crimes with indiscriminate airstrikes that have killed more than 4000 since summer. (AP Photo/Abdullah al-Yassin, File)