The shooting rampage in Tucson has prompted calls for a toning down of political rhetoric. Is it a reset moment for confrontational politics? Temple political scientist Robin Kolodny says past political debates, such as those surrounding the rights of women and African-Americans, were equally heated. She's not seeing an escalation in political violence. "This actually masks the fact that our elected officials have a lot of threats like this all the time," Kolodny said. (Note: Link below leads directly to audio MP3.)