The Federal Reserve is expected to keep interest rates unchanged on Wednesday and signal if it still plans to raise rates twice in 2016 amid concerns about a U.S. hiring slowdown and Britain’s possible exit from the European Union. The Fed raised its key overnight lending rate in December for the first time in nearly a decade, but it has backed away from further monetary policy tightening this year largely due to a global economic slowdown and financial market volatility. The U.S. central bank is scheduled to issue its latest policy statement and updated economic projections following a two-day meeting at 2 p.m. EDT (1800 GMT). Fed Chair Janet Yellen will hold a news conference half an hour […]