U.S. stock futures are down on Tuesday night ahead of the Federal Open Market Committee’s key interest rates decision on Wednesday. All three major indices are currently in the red, with Nasdaq Futures down 0.19%, or 49 points, trading at 25,650.75, while the S&P 500 Futures are down 0.08% and 5.25 points, at 6,843.00, followed by the Dow Jones Futures at 47,594.00, down 0.04% or 19 points.See Also: Where Labor Data Goes, FED Should Shortly FollowThe markets expect the final FOMC meeting of the year to resu ...