I constantly see articles in the MSM (hand-picked and provided by Google ) regarding "OMG! China and Russia Have Hypersonic Missiles!".

So does the US and the technology is not new. Where the US is lagging is in maneuverability of the missiles once in flight. Maneuvering something moving at hypersonic speed is not a small conversation. By default there has to be a time lag if steered by a human.

The question becomes "what" to defend. A hypersonic missile fired at a task force with a preset target that does not aim for that target until the last second is a problem.

Supposedly we are behind on the counter tech. No actual way of knowing. At least until Biden blurts it out