Other chronic health problems reported by the veterans include cancers, skin defects and fertility problems.

BBC: Veterans' long battle for nuclear tests' compensation

Professor Ashford believes the huge rise in pesticide use over the last half century could explain many illnesses, ranging from skin rashes and breathing problems to cancers and birth defects.

BBC: By BBC News Online's Environment Correspondent Alex Kirby

Dioxin is linked to cancer, skin disease and reproductive problems such as miscarriages and birth defects.

CNN: Warning -- this garbage is dangerous