The European Union wants to enhance the power of the bloc’s national privacy regulators in policing a planned new EU-U.S. data pact after the previous one was struck down by a top EU court on concerns about mass U.S. surveillance. Brussels and Washington are locked in negotiations to forge a new framework enabling data transfers from Europe to the United States, which are otherwise subject to cumbersome and lengthy legal processes under EU data protection law. The previous pact, known as Safe Harbour and used by over 4,000 U.S.