The Fed, surprising banks with visits is ok, but surprising them with surprise regulatory criteria, sounds illegal

Sir, amazed I read Ben McLannahan reporting that “Fed officials say that they want to preserve some mystery in their methods, so that banks stay on their toes”, “Tougher US stress test challenge looms for lenders in round two”, March 9.

Amazing, the Fed is becoming truly Kafkaesque. Who on earth does it believe it is to preserve some mystery in their method which when released might affect all us who invest in bank shares?

If it springs a surprise on the bank I have invested in, and as a result I suffer losses, should I not be able to sue the Fed?