Sarah Palin's use of the term "blood libel" while responding to the Gabrielle Giffords shooting has stirred up controversy. Her team is talking to security experts after receiving what an aide has described as an "unprecedented level" of death threats.
- See photos of the Gabrielle Giffords Shooting in Arizona.
- Take the poll: Is Political Rhetoric to Blame for Arizona Shooting?
- Read more about the Arizona shooting and Gabrielle Giffords.