Vo Viet Hung, 23, talks about his brother Vo Viet Hoang, 13, who is in this picture; "He is in pain all the time, we do not know how much longer this can go on... But I love him, he is my brother, he knows when I am near him. I can see it sometimes, for a moment, in his face".

"There are many reasons for birth defects," said Nguyen Duc Loi, vice director of the Quang Tri provincial Department of Labor, War Invalids and Social Affairs in a Associated Press story. "But we can see that in cases where parents lived in areas that were heavily sprayed with Agent Orange, the 2.4 percent rate of birth defects is much higher than the national average of 0.6 percent."