The nation's chief doctor said he doesn't regret saying gun violence is a public health issue, calling his difficult confirmation process a consequence of speaking out. Surgeon general Vivek Murthy said Saturday that the backlash from his gun control statement was disappointing but not a surprise. He was confirmed in December in the face of opposition from the National Rifle Association, in a rare defeat for the powerful gun lobby. Murthy said the challenging... (GunPolicy.org)