"Complex, important and heavily interconnected banks may still be problematic," EU commission vice-president Michel Barnier said in an end-of-tenure speech in London.http://bankd.co/1rEkJH1Describing the issue  as "another piece of 'unfinished business'" Barnier said the question was: "how we deal with banks that are too big to fail, too costly to save and too complex to resolve.""The financial reforms have done a lot to reduce systemic banking risk and limit the need for states to prop them up to maintain financial stability," he said.Pitching for the 1960s, David Murray style, Barnier pointed to a draft law he said could address the issue. "It would limit the potential for banks to expand their balance sheets through proprietary trading and, in certain cases, to separate trading from a bank's deposit taking and commercial lending activities," he said. "The objective of the proposal is the same as the Vickers reform in the UK. "I strongly encourage Member States and the European Parliament to concentrate on this proposal. Because I don't think our citizens would forgive us if we left an important source of potential systemic risk unchecked."