Attorney General Eric Holder, shown speaking at the 2012 National Law Enforcement Training on Child Exploitation earlier this month, tells NPR he's achieved his highest goal: leading a Justice Department that shaped him as a lawyer and as a person. David Goldman/AP hide caption

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U.S. Attorney General Eric Holder said human trafficking will not be tolerated in the U.S. during a speech at the Clinton School of Public Service in Little Rock, Ark., on Tuesday. Danny Johnston/AP hide caption

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In 1985, Chris Turner was convicted of the murder of Catherine Fuller. After spending decades in prison, Turner is now out on parole; he maintains his innocence. He is shown here in his childhood neighborhood in Northeast Washington, D.C., about 100 yards away from what was Fuller's home. Amanda Steen/NPR hide caption

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Former CIA officer John Kiriakou (right), accompanied by his attorney, John Hundley, leaves federal court in Alexandria, Va., on Jan. 23. Kiriakou, who helped track down and capture a top terrorism suspect, was charged with disclosing classified secrets about his teammates to the media. Jacquelyn Martin/AP hide caption

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Former Democratic presidential candidate John Edwards (left) speaks to the media with attorney Abbe Lowell last October. His trial on alleged campaign finance violations is set to begin Thursday. Chuck Burton/AP hide caption

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Attorney General Eric Holder arrives at a House Oversight and Government Reform Committee hearing on Feb. 2. Holder says, "The Civil Rights Division ... is the conscience of the Justice Department." Mark Wilson/Getty Images hide caption

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A memorial to 17-year-old Trayvon Martin outside the community in Sanford, Fla., where the teen was shot. Roberto Gonzalez/Getty Images hide caption

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In this undated photo provided by Yasir Afifi, Afifi shows a GPS monitering device he found on his car in Santa Clara Calif. FBI agents arrived at Afifi's Santa Clara apartment and demanded the return of their property a global positioning system tracking device now at the center of a raging legal debate over privacy rights. Yasir Afifi/AP hide caption

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