Bill Clinton's shaky thumb: an update
A few months ago I posted about Bill Clinton's thumb shaking (seemingly uncontrollably) during a Daily Show appearance. Commentors had noticed it, but no one knew if there was a problem, although some posited that it might be Parkinson's.
Looks like Bill Clinton has been tested, and he says that it isn't Parkinson's. Rather, it's just something that happens when one ages.