Two National Guard soldiers were shot in the head just yards from the White House during a possible terror attack by a lone gunman identified as an Afghan national. Rahmanullah Lakanwal, 29, has been named as the alleged gunman in custody over the horror shoot-out at Farragut West metro station in the center of Washington, DC, which has left two soldiers in a critical condition. Law enforcement sources initially told NBC News the gunman has been identified as an Afghan national and the shooting is being investigated as a possible act of terror. He allegedly came to the United States...