The shooting of Democratic Congresswoman Gabrielle Giffords and the slaying of six others in a hail of gunfire Saturday has sparked a national debate over whether heated political rhetoric in recent months may have sparked the violent assault. ... Prima County Sheriff Clarence Dupnik has told the press that vitriolic political debate may have played a role in the shooting. “When you look at unbalanced people, how they respond to the vitriol that comes out of certain mouths about tearing down the government. The anger, the hatred, the bigotry that goes on in this country is getting to be outrageous,” Sheriff Dupnik said.