President Bush visits Martin Luther King Jr. Library in Washington

U.S. President George W. Bush (2nd-L), First Lady Laura Bush (C) and Washington, D.C. Mayor Adrian Fenty participate in a lesson for children on the importance of Martin Luther King, Jr. Day during a tour of the Martin Luther King, Jr. Memorial Library in Washington on January 21, 2008. (UPI Photo/Mannie Garcia/Pool)