The Vietnam War ended on April 30, 1975, when the South Vietnamese capital of Saigon fell to Communist forces. But millions of people still face daily battles with its chemical legacy.
Nguyen Thanh Hai, 34, is one of millions with disabilities linked to Agent Orange. Born with severe developmental challenges, it's a struggle for him to complete tasks others take for granted: buttoning the blue shirt he wears to a special school in Da Nang, practicing the alphabet, drawing shapes, or forming simple sentences.
