President Bush pledged swift action on Saturday over findings that the FBI illegally or improperly obtained private records during terrorism and espionage investigations. Bush, visiting Uruguay on a Latin American tour, insisted he had confidence in FBI Director Robert Mueller and Attorney General Alberto Gonzales, despite a Justice Department report of FBI misconduct that has sparked a congressional outcry. "We'll address the problems in the report as quickly as possible," Bush said. Mueller had already begun work, he said. "My question is: What are you going to do to solve the problem and how fast can you get it solved?" he said at a news conference with Uruguayan President Tabare Vazquez. Under the USA Patriot Act, an anti-terrorism law signed after the September 11 attacks, the FBI can use so-called national security letters to compel the release of private information without authority from a judge or grand jury.