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WASHINGTON, DC - MARCH 26: Actor Ben Affleck (L) talks with Bill Gates, co-chair of the Bill & Melinda Gates Foundation, before they testify before a Senate Appropriations State, Foreign Operations, and Related Programs Subcommittee hearing on "Diplomacy, Development, and National Security" on Capitol Hill in Washington March 26, 2015. (Photo by Paul Morigi/WireImage)

WASHINGTON, DC - MARCH 26:  Actor  Ben Affleck (L) talks with Bill Gates, co-chair of the Bill & Melinda Gates Foundation, before they testify before a Senate Appropriations State, Foreign Operations, and Related Programs Subcommittee hearing on "Diplomacy, Development, and National Security" on Capitol Hill in Washington March 26, 2015.  (Photo by Paul Morigi/WireImage)