In the U.S., J. Edgar Hoover is appointed director of the Federal Bureau of Investigation, a position he retains until his death in 1972. Hoover is credited with building the FBI into a large and efficient crime-fighting agency, and with instituting a number of modern innovations to police technology, such as a centralized fingerprint file and forensic laboratories. But he also used the agency to grind a number of personal axes and far exceeded its legal mandate to amass secret files on political and civil rights leaders. Because of his abuses, FBI directors are now limited to 10-year terms.