I think I'd also like to add where's the motivation? Basically someone who did this would have to be what? A Serial killer with a biotechnology fetish? I'm sure that a profile could be constructed of someone that would have the motivation to do it, but that would of course be a big limitation of possible people doing it, and then out of that group limit it to the people capable of doing it, and so forth - and actually would it really be likely that someone with the skill to do it would also be in the group motivated to do it? 12 monkeys aside I actually think not.