Money traders work under a screen indicating an exchange rate for the U.S. dollar to Japanese yen at a foreign exchanges firm in Tokyo Friday May 6, 2011. The dollar fell as low as 79.54 yen Friday, ... more 
Money traders work under a screen indicating an exchange rate for the U.S. dollar to Japanese yen at a foreign exchanges firm in Tokyo Friday May 6, 2011. The dollar fell as low as 79.54 yen Friday, sparking expectations of another intervention in currency markets by Japan. The dollar hasn't traded below 80 yen since March 18, when the world's richest nations intervened to weaken Japan's currency and soften the economic blow dealt by the earthquake. less 
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Associated Press | Photo By Koji Sasahara
Fri, May 6, 2011 1:40 AM EDT