George Clooney has again proven himself as more valuable than the throwaway label of “Sexiest Man Alive.” Although his friends and fellow A-listers Bono and Angelina Jolie have largely been recognized in Hollywood for their humanitarian work, Clooney has quietly spent the last decade giving generously of his time and money to countless charitable organizations and fighting the crisis in Darfur. Here, George Clooney and US human rights activist John Prendergast walk through a camp for South Sudanese returnees from North Sudan in anticipation of the referendum to separate North and South Sudan, in Abyei, South Sudan, January 7, 2011.