The USA is, at the best of times, very good at shouting that it's a leader in combating money laundering but it's all mouth and no trousers, most of the time.
Take, for example, the noise it has made about so-called "beneficial owners" of companies, a misuse of the term that goes back to, at least, 1980s Senate Hearings into the laundering of the proceeds of drugs trafficking and the use of shell and offshore companies. 40 years on, the USA has still done nothing about it and all the signs are that nothing is going to happen soon. ADDENDUM: Comment by Jim Richards.
Here's the irony: FinCEN doesn't need to build and maintain a database at all, especially as the law restricts access to the data it holds, so voiding any KYC benefit it may have across the world.