This is one of the things I was talking about when I said it isn't risk free. How big of a risk, though, I'm sorry to say I can't even guess. Given it takes 4-5 years from exposure to symptoms, and there's no accepted test other than a postmortem brain examination, even if it is, it's doubtful anyone has noticed it yet.

In a few years though, things could get very, very, very ugly....