Army Staff Sgt Derrick Brooks (L) stands in for President-elect Barack Obama during a rehearsal for the inaugural swearing-in ceremonies as he stands with Navy Yeoman 1st Class LaSean McCray (2nd L), representing Michelle Obama, Dominique Sewell (2nd R) standing in for Malia Obama and Gianna Samora-Nixon (R) standing in for Sasha Obama, on the West Front of the US Capitol in Washington, January 11, 2009. Sgt. Brooks, who has been deployed in both Iraq and Afghanistan was one of more than 3,000 participants in the inaugural rehearsal before Obama is sworn-in on January 20. [Agencies]