The Reuters News Agency says the conduct of U.S. troops in Iraq, including increasing detention and accidental shootings of journalists, is preventing full coverage of the war from reaching the American public. In a letter to Virginia Republican Sen. John Warner, head of the Senate Armed Services Committee, Reuters said U.S. forces were limiting the ability of independent journalists to operate. The letter from the agency’s Global Managing Editor David Schlesinger called on Warner to raise these issues with Defense Secretary Donald Rumsfeld, who is due to testify to the committee on Thursday. Schlesinger referred to “a long parade of disturbing incidents whereby professional journalists have been killed, wrongfully detained, and/or illegally abused by U.S. forces in Iraq.” At least 66 journalists and media workers, most of them Iraqis, have been killed in Iraq since March 2003. U.S. forces acknowledge killing three Reuters journalists, most recently soundman Waleed Khaled who was shot by American soldiers on Aug. 28 while on assignment in Baghdad. The Pentagon says the soldiers were justified in opening fire. Reuters believes a fourth Reuters journalist, who died in Ramadi last year, was killed by a U.S. sniper. Schlesinger said the Pentagon has refused to conduct independent and transparent investigations into the deaths of the journalists, relying instead on inquiries by officers from the units responsible, who had exonerated their soldiers.