Scrambled Greece?

I don't know how much of the overnight sell-off is due to pessimism over Greece, or if it is due to liquidations in anticipation of the Fed's FOMC meeting today and statement tomorrow. It's probably some of both, but it is typical for people to lighten up on their positions in anticipation of Fed actions, so this comes as no surprise to me. The Fed's latest statement will be released at 10:30 am MST tomorrow morning.
Last night, Goldman Sachs indicated that they don't expect the Fed to initiate any additional quantitative easing, and upon that announcement, the selling began. It still isn't enough, however, to turn the market bearish.