Associated Press
A river buoy floats in the Mississippi River as a barges and their towboat float past it, Wednesday, Aug. 22, 2012 north of Greenville, Miss. Coast Guard Capt. William Drelling said Wednesday that authorities would inspect the channel near Greenville, then reset navigation buoys allowing barge traffic to resume on a limited basis as both federal agencies deal with the continued drought that has lowered the Mississippi River. (AP Photo/Rogelio V. Solis)

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