In the wake of the recent Arizona shootings, a great deal of attention has been focused on the tone of our political discourse and the need for more civility regarding those of opposing viewpoints. While it has become clear that harsh rhetoric had no direct bearing on the incident in Tucson, nevertheless President Obama made a pointed reference at last week's memorial service to the toxic atmosphere of our national dialogue, and he made an impassioned plea for our words to be worthy of the victims and to heal rather than wound.