Is it sane to trust Huawei equipment in the US and Europe?

Senator Cotton's example seems absurd to me. It must be fairly easy for China to determine where F35s are stationed — no need to track their supply chains. But the basic idea is valid: no company in China can refuse to follow the state's orders. In principle, there is no basis to trust their products.

That includes the companies such as Foxconn that manufacture digital products for "US" companies.

Unfortunately, we can't trust the US in principle either.