A computer simulation developed by Chinese researchers suggests that a missile-borne system with the latest light detection and ranging system, or lidar, could detect and track an F-35 stealth fighter at up to 61.5km (38 miles) at night. The theoretical model developed by a leading Chinese air force missile supplier says that under ideal conditions, the claimed range could have implications for the F-35’s ability to survive while facing China’s stealth fighters. But one analyst is sceptical that...