Wall streets worse drop in nearly four years, thats where we begin tonight. The stock market closed down 530 points, traders blame fears over chinas countercy, and a steep drop in oil prices. Ali velshi describe this day, how bad was it . Ive been watching it very carefully throw the course of the day. It didnt look like it would be that much worse than the last couple of weeks. This market has been a tough place. In the end the dow closing down. The decline of 3 . I use 3 as a benchmark for something that is serious. The s p 500, which is broader than the dow, and probably has more to do with our viewers investments fell a little bit more, 3. 2 , but its down 5. 8 for a week. Now in an okay year you may gain 5. 8 in an entire year. So it hurts to lose that much in a day. You wipe out the years gain. Now youre below. The nasdaq also fell, and 6. 8 for the week, and the dow is now down more than 10 from its alltime high from may 19th. Now decline is called a correction. A bear market is