China is working on a weapon the US decided was too dangerous to exist
The US Defense Department believes the Chinese People’s Liberation Army is developing a new Intercontinental Ballistic Missile. That is, a heavy, multi-stage missile that leaves the Earth’s atmosphere and travels around the world at huge velocities before re-entering and descending toward its target at 20 times the speed of sound. Such missiles normally have a nuclear warhead: but this one, uniquely, would be armed with conventional explosives.