Massive new money, staff, and detention facilities plus a president willing to deploy them aggressively could address the volume problem.

But the other problem remains and when the applicant comes up not found in Data Bases, or comes from a country where records don't exist or corruption has rendered them useless or sporadically available, or a country where bribes are effective in purchasing official credentials. How cooperative do you think the ChiComs were in throwing open their criminal databases so we could vet those 55,000 that apparent were?

Exactly. Since Congress has been blocked from providing the new money, staff, or detention facilities, it's beside the point whether the President (either Biden or Trump) would deploy them aggressively or not. And since Congress has been blocked from providing those things, we can't indefinitely detain the Chinese immigrants (or really very many at all) purely as a precautionary or prophylactic measure.

I mean, the gating step isn't some enormous secret. In order to solve any of these problems, Congress needs to act. Congress will not act if the GOP is being told by Trump not to act. And since Trump is telling them not to act, there's not much that can or will be done.

BTW, it's not like we don't have experience vetting dissidents that defected from our geopolitical enemies - this was kind of routine in the Cold War. You don't check them out by asking the country they defected from (the USSR back then) to provide background info. And honestly, why bother focusing on some 30-40K Chinese folks entering the U.S. over the border, when some 400,000 will enter the U.S. from China just through ordinary tourist travel every year? If China wanted to put personnel in the US, it's far simpler to just give them fake documents and send them on a flight to LA....