EXCLUSIVE - U.S. REGULATORS ARE CONSIDERING CHANGES TO THE "VOLCKER RULE" THAT WALL STREET HAS SOUGHT FOR YEARS - SOURCES
U.S. REGULATORS ARE CONSIDERING ELIMINATING BIG BANKS' RESPONSIBILITY TO PROVE THEY DO NOT TRADE ON THEIR OWN ACCOUNT - SOURCES
U.S. REGULATORS ARE ALSO CONSIDERING MAKING IT CLEARER WHICH TYPES OF FUNDS BANKS ARE BANNED FROM INVESTING IN - SOURCES