The US Congresswoman, who was shot by a gunman in Arizona, underwent a brain surgery after the bullet fired at a close range passed through her head. Congresswoman Gabrielle Giffords, who officials believe was the target of the shootout remained in critical condition after the brain surgery, though doctors said they were hopeful of her recovery. The bullet, from a semiautomatic pistol, entered her head from the front and exited through the rear after passing through her brain in what doctors described as a "through and through" injury. The mass shooting that besides gravely wounding Giffords, killed a federal judge amongst five more people, has shocked the nation and raised concerns that the heated political discourse had taken a dangerous turn. Giffords underwent brain surgery after the shooting that authorities said was a targeted attempt on her life.