Federal Bureau Of Investigation

20120909-200846-pic-849518993.jpg

U.S. Attorney for the District Ronald C. Machen Jr. holds a news briefing in July with Ronald T. Hosko of the FBI (left) and Rick A. Raven of the Internal Revenue Service about the guilty plea of Eugenia C. Harris for city political campaign violations. (Associated Press)

Scanned_document_29-08-2012_12-59-21.png

An excerpt of a threatening letter in Joe Paterno's FBI file.

bank.jpg

D.C. police and the FBI are investigating three related bank break-ins during which suspects cut holes in the walls of banks in Northwest D.C. and entered through adjacent buildings. (Photo courtesy of the FBI)

20120823-210416-pic-580165062.jpg

Attorney General Eric H. Holder Jr.’s use of FBI planes for travel is the subject of a letter to the FBI director from GOP lawmakers questioning whether the number and nature of his flights amount to misuse. (Associated Press)

Sikh Temple Shooting_Lea.jpg

Teresa Carlson, FBI special agent in charge in Milwaukee, speaks at a press briefing in Milwaukee on Wednesday, Aug. 8, 2012, about the mass shooting at the Sikh Temple of Wisconsin on Sunday. (AP Photo/Tom Lynn)

PAGE.jpg

This undated photo provided by the FBI on Monday, Aug. 6, 2012, shows Wade Michael Page, a suspect in the Sunday, Aug. 5, 2012, Sikh temple shootings in Oak Creek, Wis. (AP Photo/FBI)

Sikh Temple Shooting__Live.jpg

This undated photo provided by the FBI shows Wade Michael Page, the suspect in the Sikh temple shootings in Oak Creek, Wis., on Sunday, Aug. 5, 2012. (Associated Press)

Missing Cousins Iowa_Live.jpg

This combo made from undated photos provided by the FBI shows cousins Lyric Cook (right), 10, and Elizabeth Collins, 8, who have been missing since July 13, 2012. (Associated Press

Obit Henry Hill_Live.jpg

**FILE** Henry Hill, whose life as a mobster and FBI informant was the basis for the Martin Scorcese film "Goodfellas," sits Feb. 22, 2005, in the Firefly restaurant in North Platte, Neb. (Associated Press)

20120516-204335-pic-870648077.jpg

FBI Director Robert S. Mueller III told a Senate committee Wednesday that leaks threaten law enforcement operations, put sources' lives at risk and make it harder to recruit them, and damage ties with foreign law-enforcement partners. (Associated Press)