Mai Giang Vu was exposed to Agent Orange while serving in the Army of South Vietnam from 1968 to 1974. He carried barrels of chemicals to spray in the jungle. His sons were born in 1974 and 1975. They were unable to walk or function normally. Their limbs gradually “curled up” and they could only crawl. By age 18, they were bedridden. One died at age 23; the other at age 25.