American intelligence officials have confirmed that Ling Wancheng, brother of former Chinese President Hu Jintao's powerful aide Ling Jihua, had revealed some of the innermost secrets of the Chinese government and military, including details of its nuclear command and control system. Ling Wancheng, who has been living in California under the names Wang Cheng and Jason Wang, has been undergoing a debrief by FBI, CIA, and other intelligence officials since last fall at a secret location in the United States. Among the information disclosed by Ling are details about the procedures used by Chinese leaders on the use of nuclear weapons, such as the steps taken in preparing nuclear forces for attack and release codes for nuclear arms. Other secrets revealed included details about the Chinese leadership and its facilities, including the compound in Beijing known as Zhongnanhai. Ling Jihua 'stole' some 2,700 internal documents from a special Communist Party unit he headed until 2012 and gave them to his brother as 'insurance'. That information is said to be valuable for U.S. electronic spies, specifically for cyber intelligence operations targeting the secretive Chinese leadership.Spokesmen for the White House, FBI, CIA, and Department of Homeland Security declined to comment on the case, though a senior Intelligence official has confirmed it as "an intelligence windfall.”