The firing of Lt. Gen. Brett Sylvia, a top military planner on the Joint Staff, came after an "extensive" investigation into leaks, and the matter has been referred to the Justice Department, according to Sean Parnell, the top Pentagon spokesman. Parnell posted a lengthy statement on social media Thursday morning addressing the news of Sylvia's firing, which came out a day earlier. His comments are the first on-the-record response since it became public. "Following an extensive Air Force OSI investigation, the Department took necessary personnel action to protect sensitive information," Parnell said. "To protect the integrity of the investigation, no...