and for more on the recent volatility and attempts to better stabilize markets, we turn to nick perna, head of perna associates a consulting firm specializing in economic analysis and james angel, a professor of finance at georgetown university. nick perna start with today, 376 points down, including a sharp drop at the end, what's going on. >> it was a real nail-biter today it is sort of like the cumulation of lots and lots of anxiety that started about three weeks ago. so we're up a total of over a thousand points for the dow since the last week of april. i will point out, however, that even with that thousand point decline, we are still some 50% ahead of where we were at the lows of april of 2009. so it is a case of high anxiety, and some revaluation, revisiting as to whether or not the market had too high hopes for the u.s. economy. i think a moderate recover is in store, not a big one. >> brown: we will get to specifics in a moment but james angel, let me bring you in. a correction of 10% drop from a high, sort of a technical term but what do you see happening in terms of the vol