U.S. Attorney General Alberto Gonzales wipes away a tear as he takes the podium to make remarks to Justice Department staff members on his last day in the post in Washington, September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of U.S. President George Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

Former U.S. Solicitor General Theodore Olson arrives for a farewell ceremony for outgoing U.S. Attorney General Alberto Gonzales on his last day in the post in Washington September 14, 2007. Olson has been mentioned as a possible successor to Gonzales, who resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Secretary of Homeland Security Michael Chertoff (L) and Secretary of State Condoleezza Rice (R) applaud during a farewell ceremony for outgoing U.S. Attorney General Alberto Gonzales on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Attorney General Alberto Gonzales pauses after making remarks to Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Attorney General Alberto Gonzales wipes away tears during testimonials at a farewell ceremony with Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Attorney General Alberto Gonzales waves to photographers as he departs a farewell ceremony with Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Attorney General Alberto Gonzales wipes away tears during testimonials at a farewell ceremony with Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Attorney General Alberto Gonzales (seated) is applauded during a farewell ceremony with Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. Pictured at right is emcee Acting U.S. Deputy Attorney General Craig Morford. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Secretary of State Condoleezza Rice attends a farewell ceremony for outgoing U.S. Attorney General Alberto Gonzales on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Attorney General Alberto Gonzales sits during a farewell ceremony with Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Attorney General Alberto Gonzales (C) bows his head in prayer during a farewell ceremony with Justice Department staff members on his last day in the post in Washington, September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of U.S. President George Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

Rebecca Gonzales (R), wife of U.S. Attorney General Alberto Gonzales, and their three sons attend a farewell ceremony with Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

Tears well up in the eyes of U.S. Attorney General Alberto Gonzales as he takes the podium to make remarks to Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

Tears glisten on the cheek of outgoing U.S. Attorney General Alberto Gonzales during a farewell ceremony with Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Marshals Service Director John Clark (L-R), Acting Director of the Bureau of Alcohol, Tobacco, Firearms and Explosives Michael Sullivan and FBI Director Robert Mueller attend a farewell ceremony for outgoing U.S. Attorney General Alberto Gonzales on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

FBI Director Robert Mueller (R) makes remarks during a farewell ceremony for outgoing U.S. Attorney General Alberto Gonzales (L) on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Attorney General Alberto Gonzales takes the podium to make remarks to Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES) 

U.S. Attorney General Alberto Gonzales gets a standing ovation during a farewell ceremony with Justice Department staff members on his last day in the post in Washington September 14, 2007. Gonzales resigned last month amid a series of congressional investigations into his firing of federal prosecutors and his handling of President George W. Bush's domestic spying program. REUTERS/Jonathan Ernst (UNITED STATES)