Big banks accused of interest rate-swap fixing in U.S. class action suitThe class action lawsuit, filed in U.S. District Court in Manhattan, accuses Goldman Sachs Group (GS.N), Bank of America Merrill Lynch (BAC.N), JPMorgan Chase(JPM.N), Citigroup(C.N), Credit Suisse Group (CSGN.VX), Barclays Plc (BARC.L), BNP Paribas SA (BNPP.PA), UBS (UBSG.VX), Deutsche Bank AG (DBKGn.DE), and the Royal Bank of Scotland (RBS.L) of colluding to prevent the trading of interest rate swaps on electronic exchanges, like the ones on which stocks are traded.