Actor George Clooney, center, who has been designated as U.N. messenger of peace by U.N. Secretary General Ban Ki-Moon, visits the Zamzam refugee camp in North Darfur, Sudan, in late January 2008. Clooney just returned from a two-week trip to 19 locations in Sudan's Darfur region, the Central African Republic, Chad and the Democratic Republic of Congo.
Author: CBS News Staff
Credit: AP Photo/UNAMID, Sherren Zorba