U.S. actor George Clooney (R) listens to his father Nick Clooney speak at a rally calling for the stop to the genocide taking place in Darfur, in front of Capitol Hill in Washington April 30, 2006. The rally is part of the "Million Voices for Darfur" [campaign to generate one million postcards for delivery to U.S. President George W. Bush, who recently pledged to push for additional UN and NATO help to protect the people of Darfur.]