Right-wing US politician Sarah Palin has posted a nearly eight-minute video on her Facebook page condemning those who blame fierce political campaigning for the Tucson massacre.
Mrs Palin has been criticised for an online campaign map that targeted the district of shot congresswoman Gabrielle Giffords with the cross hairs of a gun sight.
In the video the 2008 Republican vice presidential candidate said vigorous debates are a cherished tradition. But she said after the election, both sides find common ground, even though they disagree.
She said that especially as a tragedy unfolds, journalists and pundits should not manufacture what she called a "blood libel" that incites hatred and violence.