What's behind the recent stock market volatility?

Stocks went into a freefall Wednesday after the bond market stoked fresh fears of a recession. The Dow Jones plunged 800 points -- a sharp departure for a market that had very recently been hitting record highs. And the high level of volatility has investors on edge. Jeffrey Brown talks to Neil Irwin of The New York Times about how uncertainty is creating hesitation on the part of global business.