Nine-year old Le Minh Chau, who suffers from birth defects as a result of his parents exposure to the defoliant Agent Orange, draws in his notebook at the Tu Du Women's Hospital in Ho Chi Minh City November 14, 2000, [a few days before a visit to Vietnam by U.S. President Bill Clinton.] Hanoi says that the U.S. has a moral responsibility to do more to help alleviate the suffering caused by the Vietnam War including the legacy of the toxic defoliant used by U.S. forces that Vietnam blames for causing tens of thousands of birth defects.