As details emerge about the Arizona shooting that claimed the life of federal Judge John Roll, and left Rep. Gabrielle Giffords (D-Az) fighting for her life, echoes of violent political imagery have come under eery scrutiny, no more so than in this March interview between Giffords and MSNBC's Chuck Todd and Savannah Guthrie. In the clip, Giffords talks about threats and vandalism of her office, and specifically mentions Sarah Palin's