The number of unidentified corpses found in the Iraqi capital ¿ a key indicator of sectarian violence ¿ is rising following declines in recent months. U.S. and Iraqi officials have cited the declines as a sign of progress for the Baghdad security plan, which began Feb. 14. Security forces also have been unable to curtail mass-casualty attacks, mainly against Shiite targets.
Research by Robert E. Thomason, Graphic by Gene Thorp, Laura Stanton and Dita Smith, The Washington Post
