Directional Bias For The Day: S&P Futures are lower; moved sharply lower beginning 7:00 AM Just above a critical support level of 2611.00 Odds are for a sideways to down move – watch for break above 2624.50 for change of fortune Key economic data due Prelim Nonfarm Productivity (0.7% vs. 0.9% est.) at 8:30 AM Prelim Unit Labor Cost (2.7%…