A dozen years on and researchers are still trying to prove that some Gulf War vets came back with burning semen. Finally someone has looked at the proteins in the stuff and for antibodies to the proteins in their partners, a classic sign of an allergic reaction. They think they've found some.
But here's the catch. Of almost 700,000 vets only 211 report the burning semen thing and 7 percent of those say they had it before they went to the Gulf. We still don't know what the rate of burning semen syndrome might be among the general population. Without that it is impossible to tell if Gulf service has anything at all to do with the issue.