An assistant director of the Secret Service urged that unflattering information the agency had in its files about a congressman critical of the service should be made public, according to a government watchdog report released Wednesday. “Some information that he might find embarrassing needs to get out,” Assistant Director Edward Lowery wrote in an e-mail to a fellow director on March 31, commenting on an internal file that was being widely circulated inside the service. “Just to be fair.” Two days later, a news Web site reported that Rep. Jason Chaffetz (R-Utah), chairman of the House Oversight Committee, had applied...