GOOD MORNING AMERICA - Bill and Melinda Gates talk with Robin Roberts about the goals of their Foundation, which works to help people improve their health, lift themselves out of poverty and get the best possible education. They also take questions from young people during the interview which airs Tuesday, FEB. 23 on GOOD MORNING AMERICA (7-9am, ET) on the Walt Disney Television via Getty Images Television Network. (Photo by Ida Mae Astute/Walt Disney Television via Getty Images) BILL GATES
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