Stock markets tumbled again today on continued worries about the U.S. government slowing down its steady purchases of U.S. bonds—the economic recovery hasn't been strong or sustained enough to survive without the Federal Reserve constantly creating money to buy its own bonds.

The Dow Jones index is down 354 points, a drop of 2.4% that follows Wednesday's steep drop in all the market indices. Gold and bonds also dropped as unemployment edged up and fear set in.