Afghan villagers pray during a ceremony on Tuesday, March 13, 2012, for the victims of Sunday's killing of 16 civilians allegedly by a U.S. soldier in Panjwai, Afghanistan. (AP Photo/Allauddin Khan)

Photo by: Allauddin Khan

Afghan villagers pray during a ceremony on Tuesday, March 13, 2012, for the victims of Sunday's killing of 16 civilians allegedly by a U.S. soldier in Panjwai, Afghanistan. (AP Photo/Allauddin Khan)