They got it working producing nuclear weapons. Similarly asbestosis or silicosis are caused by exposure to an unique substances. Now one can be exposed to asbestos or silica on or off a DOE facility but the same time we know what the exposure was. With cancer it's much more complicated. We know individuals get cancer who are exposed to radiation and who are not exposed to radiation.
Different cancers have different causes for any individual.
You can rarely be absolutely sure that the radiation caused the cancer. But for each type of cancer and based on each person's exposure we can initially look at probability, how likely was it that our exposure caused their disease and that's what we have to do. Where that's one of the approaches that the federal government uses. We haven't yet come to what our solution will be. Um, the Veteran's Administration excuse me let me start again.