Sarah Palin Responds to Arizona Tragedy in Video

Former Alaska Gov. Sarah Palin, who has her eyes on the Republican presidential nomination in 2012, released a video with her thoughts on the tragedy in Arizona that took place on Saturday -- and defended herself from critics who have attacked her rhetoric.

Supporters of Palin will no doubt cheer the former governor not backing down and not shouldering the blame for the incident, but critics will take aim at her use of the term blood libel --a term usually descriptive ofthe medieval myth that Jews killed children -- as well as releasing the video hours before the memorial service in Arizona.