I just had a bizarre conversation with my bank.
I had an incoming international transfer of a small amount of money, and it showed up on my statement as coming from an intermediate account by my own bank. I called them to ask from which foreign bank the money was transferred to me, and they were unable to tell me. Note: I didn’t ask from which account at the foreign bank, which might have been my next question, I just asked for the name of the bank and the country it was in.
This effectively means that the USA Government has more information on my own bank account than I do.