So your point in the use of the term 'blood libel' is that gimpy said that he thought that Palin is responsible for the attacks? Well, I'll point you back to post No. 11 for my response.
http://www.subsim.com/radioroom/show...7&postcount=11
More to the point, that Palin has a legitimate point does not mean that the term wasn't used in poor taste; it was. Either that, or Palin is now Jewish and we should anticipate a new pogrom. Since I doubt either of those are the case, I would suspect that the term is somewhat insensitively used in such a context.