WASHINGTON — FBI agents repeatedly complained to their superiors that harsh interrogation techniques used on detainees in Iraq, Afghanistan and Guantanamo might violate the law and jeopardize future criminal trials, but administration officials took little action to address their concerns, according to a report by a government watchdog. At one point in 2003, several top Justice Department officials raised concerns about the interrogation practices at Guantanamo Bay detention facility with the National Security Council, which includes President Bush and Vice President Cheney and was chaired at the time by then-National Security Adviser Condoleezza Rice, the Justice Department’s Inspector General Glenn Fine found. ‘But they did not recall that any changes were made at (Guantanamo) as a result,’ Fine said. Although the FBI’s concerns about harsh interrogations were previously known, Fine’s report provides the most detailed narrative yet of how the bureau, the Justice Department, the CIA and the Pentagon did little to address them and in some instances appear to have disregarded the warnings.