
** FILE ** Attorney General Eric Holder is questioned about the Justice Department secretly obtaining two months of telephone records of reporters and editors for The Associated Press, during a news conference at the Justice Department in Washington, Tuesday, May 14, 2013. (AP Photo/J. Scott Applewhite)

** FILE ** Attorney General Eric Holder is questioned about the Justice Department secretly obtaining two months of telephone records of reporters and editors for The Associated Press, during a news conference at the Justice Department in Washington, Tuesday, May 14, 2013. (AP Photo/J. Scott Applewhite)

Gary Pruitt, president and CEO of The Associated Press, discusses the leak investigation that led to his reporters' phone records being subpoenaed by the Justice Department, on CBS' "Face the Nation" in Washington on Sunday, May 19, 2013. Mr. Pruitt said that the seizure of the records was "unconstitutional" and that the secret subpoena has made sources less willing to talk to AP journalists. (AP Photo/CBS, Chris Usher)

Gary Pruitt, president and CEO of The Associated Press, discusses the leak investigation that led to his reporters' phone records being subpoenaed by the Justice Department, on CBS' "Face the Nation" in Washington on Sunday, May 19, 2013. Mr. Pruitt said that the seizure of the records was "unconstitutional" and that the secret subpoena has made sources less willing to talk to AP journalists. (AP Photo/CBS, Chris Usher)

Attorney General Eric Holder testifies on Capitol Hill in Washington on May 15, 2013, before the House Judiciary Committee oversight hearing on the Justice Department. (Associated Press)

Attorney General Eric Holder testifies on Capitol Hill in Washington on May 15, 2013, before the House Judiciary Committee oversight hearing on the Justice Department. (Associated Press)

Attorney General Eric Holder is questioned about the Justice Department secretly obtaining two months of telephone records of reporters and editors for The Associated Press, during a news conference at the Justice Department in Washington, Tuesday, May 14, 2013. (AP Photo/J. Scott Applewhite)

Attorney General Eric Holder is questioned about the Justice Department secretly obtaining two months of telephone records of reporters and editors for The Associated Press, during a news conference at the Justice Department in Washington, Tuesday, May 14, 2013. (AP Photo/J. Scott Applewhite)

** FILE ** Attorney General Eric Holder is questioned about the Justice Department secretly obtaining two months of telephone records of reporters and editors for The Associated Press, during a news conference at the Justice Department in Washington, Tuesday, May 14, 2013. (AP Photo/J. Scott Applewhite)