How does one sum up the wildest 15 minutes of trading and a session that should rank as one of the craziest in the history of Wall Street? In the infamous words of the Mad Magazine's Alfred E. Neuman, "What, me worry?" The Dow Jones erased most of its historic 1,000-point plunge off the opening bell, as it traded lower by roughly 200 points at the time this article was written. During the collapse, several large-cap issues traded down to levels not seen in years and may not be revisited for a long time, if ever.