• The secretive missile delivery craft could travel at up to 7,680 mph (12,360 kph)
  • Its speed will ensure China’s nuclear threat can reliably breach US defences 
  • A model was briefly shown during a State-run TV special earlier this month
  • The documentary was covering the country’s JF-12 hypersonic wind tunnel
  • One nuclear weapons expert said the model is likely a test design for the DF-ZF