Directional Bias For The Day: S&P Futures are lower; sharply lowered at 8:00 AM after breaking below a flag; the 100% extension target of the flag is near 2670.00 Odds are for a down day with elevated volatility – watch for break above 2716.00 for change of fortune Key economic data due: Final GDP (2.0% vs. 2.2% est.) at 8:30 AM…