The top U.S. military commander in Afghanistan intends to order an investigation into whether a three-star general responsible for training Afghan security forces inappropriately used members of a psychological operations team to influence visiting U.S. senators into providing more funding for the war. The U.S. command in Kabul issued a statement Thursday saying Gen. David H. Petraeus is preparing to order an investigation to determine the facts and circumstances surrounding the issue." The investigation stems from an article published ... on the Web site of Rolling Stone magazine alleging that Lt. Gen. William Caldwell, the head of the U.S. and NATO training operation for Afghan forces, used an "information operations" team to "manipulate visiting American senators" and other visitors, including the chairman of the Joint Chiefs of Staff, Adm. Mike Mullen. The article is based on the claims of a lieutenant colonel who served on a psychological operations team in Afghanistan last year and who alleges he was subjected to retribution when he resisted the assignment.