Question:  What is Blood Libel?
Answer:   Historically,  Blood Libel refers to a false accusation or claim that Jews or other minority groups kill children and use their blood for various religious ceremonies.  Blood Libel was used by anti-Semitic groups to justify killing Jews and discriminating against them.
In January of 2011,  Sarah Palin used it to describe the accusations against her for inciting political violence.  
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