Dennis Prager talked a lot about Palin being accused of having a hand in the murders in Tucson and her use of the term "blood libel" yesterday. It’s long but it’s good. Listen through to the end:
Personally, I think the best definition I’ve found of "blood libel" as its used today comes from Rob Miller’s submission:
It refers to false and libelous accusations of bloodshed leveled because of whom one is rather than anything they’ve actually done.