In this photograph of a courtroom sketch, Khalid Sheikh Mohammed, charged with orchestrating the Sept. 11 attacks, attends a court hearing at Guantanamo in 2008. He's expected to appear in a military court Saturday. Janet Hamlin/AP hide caption

Jamaica's Usain Bolt shattered world records in the 100 and 200 meter races at the 2008 Beijing Olympics. Shown here in the 200 meters at Beijing, he's looking to repeat this summer at the London Olympics and add another chapter to Jamaica's great tradition of sprinting. Julian Finney/Getty Images hide caption

Pam and Robert Champion hold their son's drum major hat from Florida Agricultural and Mechanical University. Robert Champion Jr. died after a hazing incident in November. Jim Burress for NPR hide caption

Adam Yauch (left) with the Beastie Boys in 1987. The gruff-voiced rapper known as MCA died Friday after a battle with cancer. Ebet Roberts/Getty Images hide caption

Supporters of the right-wing splinter Independent Greeks party wave flags during an election rally in the northern Greek city of Thessaloniki, May 2, 2012. Panos Kammenos' party and other anti-bailout parties have made a strong showing in opinion polls ahead of the May 6 general election. Giorgos Nissiotis/AP hide caption

Of candidates willing to run for the Americans Elect nomination, former Louisiana Gov. Buddy Roemer, shown in 2011, is the most popular so far. Charles Krupa/AP hide caption

Egyptian presidential candidate Abdel Moneim Aboul Fotouh is welcomed by supporters upon his arrival at a meeting north of Cairo, on April 26. He was formerly a leader of the Muslim Brotherhood, but was kicked out of the organization. Khalil Hamra/AP hide caption

The field of horses charges down the stretch in the seventh race at Churchill Downs in Louisville, Ky., on June 19, 2009. The day marked the first night racing at the storied track in its 135-year history. Track superintendent Butch Lehr is retiring after Saturday's race. He's been maintaining the track since 1982. Ed Reinke/AP hide caption