I am sliding a comment in to remind everyone of the missile systems built into shipping containers. We are likely already at war with China based on current situation though not officially announced.

This may be an indicator that all containers are being screened before entry, 1 by 1, to look for weapon systems. These crates once unloaded can be transported anywhere in the country by truck and rail and activated remotely at any time to deploy payloads. They can also deploy from the ships directly to their target.

There was mention of this back in January and I had forgotten about it until this post reminded me of it.