Can you copy and paste the quote from your link to the Congress site?
I glanced through it and I don't see where it says that.
It's right here, about half way down the page:
(B) by inserting before the semicolon at the end the following: ", or any digital exchanger or tumbler of digital currency";
Essentially, the bill defines digital currencies as "monetary instruments" and digital exchanges/tumblers as "financial institutions" for AML enforcement purposes.
Per
bitcoin.com:
First, 5316 currently states: "(2) 'financial institution' means—…(B) a commercial bank or trust company." This would be amended to insert "or any digital exchange or tumbler of digital currency." The news site Coindesk observes, "the bill clarifies that any 'issuer, redeemer or cashier' of a 'digital currency' is also covered."
"Funds stored in a digital format" would be included "within the definition of monetary instruments" making them subject to anti-money laundering reporting requirements…where the value stored is above $10,000.
If I'm reading that correctly, it puts Bitcoin exchanges on the same level as banks (financial institutions) regarding the type of information required to transact. That means giving up SSN and other information that could be used to steal your identity.
It's also unclear how "tumbler" is defined.