A broker works in a trading room of a Portuguese bank in Lisbon Wednesday, Aug. 10, 2011. Worries over the debt problems afflicting a number of European countries as well as the U.S. have knocked ... more 
A broker works in a trading room of a Portuguese bank in Lisbon Wednesday, Aug. 10, 2011. Worries over the debt problems afflicting a number of European countries as well as the U.S. have knocked confidence over the global economic recovery and triggered turmoil in financial markets around the world. (AP Photo/ Francisco Seco) less 
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Associated Press | Photo By Francisco Seco
Wed, Aug 10, 2011 8:12 AM EDT