Originally posted by Deathhawk
There is no radioactice things IN a H-engine! It would not cause fusion anyway!
(I know this is way off topic....)
There's nothing radioactive in a hydrogen bomb, either. The reaction that takes place during the explosion results in the chain reaction that causes other elements to become radioactive. Anytime you fuse two atoms together (be they inert Argon or Neon), you will have a reaction that emits massive amounts of radiation -- and not just heat. The sun is H-fusion powered, and I think we can all agree of the dangers of solar flares, etc..
But see my previous post on why fusion is not even an issue in Hydrogen-powered cars.