https://www.axios.com/trump-team-debates-nationalizing-5g-ne...

But unanswered questions:

America needs a centralized nationwide 5G network within three years.

Why?

a single centralized network is what's required to protect America against China and other bad actors.

Why? How?

Is the concern that the 5G network hardware is all made in China?

EDIT: OK yes that seems to be the concern. From the Axios post: U.S. has to build superfast 5G wireless technology quickly because “China has achieved a dominant position in the manufacture and operation of network infrastructure,” and “China is the dominant malicious actor in the Information Domain.”