The abuse of the term "blood libel"

Sarah Palin has taken a lot of heat for "misunderappropriating" the term "blood libel". Team Sarah Points to Even More Recent Uses of ‘Blood Libel’ - By Jim Geraghty - The Campaign Spot - National Review Online

Because of the numerous earlier uses of the phrase on both sides of the aisle, with no discernible objection or controversy, it is easy to conclude that voices driven to great outrage by Palin’s use of the term are just looking for any old excuse to be outraged.

Indeed.