>>>Good idea. Something like the problem of drunk drivers solving itself in the long run. Specially if they do it amongst themselves.
>>
>>Ah, but they don't ... that's the problem. Most drunk drivers aren't seriously injured in the accidents they cause that kill or seriously injure others.
>
>So we only need a way to get them to crash into each other, and voila... problem gone.

Shouldn't that be 'viola' :-}