Newsweek magazine backed away Sunday from a report that U.S. interrogators desecrated copies of the holy Quran while questioning prisoners at the Guantanamo Bay naval base -- an account blamed for sparking violent riots in Afghanistan and elsewhere. At least 15 people were killed and dozens injured last week when thousands of demonstrators marched in Afghanistan and other parts of the Muslim world, CNN quoted officials and eyewitnesses as saying. "We regret that we got any part of our story wrong, and extend our sympathies to victims of the violence and to the U.S. soldiers caught in its midst," Newsweek Editor Mark Whitaker wrote in the magazine's May 23 issue, out Sunday.
