A shop assistant changes Russian Ruble - US Dollar exchange rate to 30 rubles per dollar at an exchange booth in Moscow, Russia, Tuesday, Aug. 9, 2011. The Russian ruble on Tuesday lost nearly 3 ... more 
A shop assistant changes Russian Ruble - US Dollar exchange rate to 30 rubles per dollar at an exchange booth in Moscow, Russia, Tuesday, Aug. 9, 2011. The Russian ruble on Tuesday lost nearly 3 percent against the US Dollar to a six-month low on the back of the U.S. debt downgrade and a sharp fall in oil prices.(AP Photo/Misha Japaridze) less 
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Associated Press | Photo By Misha Japaridze
Tue, Aug 9, 2011 8:21 AM EDT