Worrying new satellite images reveal major changes at a highly classified military site dubbed 'China's Area 51 ' - and experts say it confirms their worst fears about Xi Jinping 's military ambitions . The site, located in a dried-up salt lake in the Xinjiang Uyghur Autonomous Region (XUAR) to the northwest of the country, was first built in the 1960s and once hosted some of the nation's very first nuclear tests. Now, new images suggest huge amounts of construction work has taken place at