street, dow plunging 326 points monday, down 7% since the beginning of the year. the drastic drop sparked by a weak manufacturing report and disappointing sells from big auto makers like ford, toyota, gm. for many the sell off isn't surprising. here's why. stocks can't go up forever. after last year's muj rally, many call this an expected correction. >> i don't think this correction is over. last time i talked about a correction waiting for gurdo. >> there's a new leader at federal reserve. janet yellen is picking up where bernanke left. third, emerging marketing include turkey, south africa, leaving investors shaky. there are questions about where the u.s. is heading. dozens of companies have put out