One particular line in Sarah Palin's statement on the Arizona shootings has created an uproar:
"But, especially within hours of a tragedy unfolding, journalists and
pundits should not manufacture a blood libel that serves only to incite
the very hatred and violence they purport to condemn. That is
reprehensible."
The term "blood libel" usually refers to the false accusation that Jews use the blood of Christian children in some of their religious rituals.
While it's not entirely clear what Palin intended, it's possible she was trying to use dog whistle politics to speak to her religious base who often feel they're an oppressed minority.