AP) - Sen. Jeff Bingaman asked Veterans Affairs Secretary James Nicholson for a thorough inquiry of his agency's investigation into whether a VA nurse's letter criticizing the Bush administration amounted to "sedition." The agency's human resources office ultimately cleared her of any wrongdoing, but Bingaman, D-N.M., said Tuesday he was concerned the VA investigated Laura Berg of Albuquerque in the first place. Merely opposing government policies and expressing a desire to change course "does not provide reason to believe that a person is involved in illegal subversive activity," he said. Bingaman said such investigations raise "a very real possibility of...