Photo Of The Day: Drought Threatens Mississippi Shipping

(AP) — This Nov. 28, 2012 photo provided by The United States Coast Guard shows vessels navigating through close quarters at a fleeting area, where barges are picked up and dropped off, on the Mississippi River near St. Louis, Mo.

The Mississippi, after months of drought, is approaching the point where it may become to shallow for barges that navigate the river. (AP Photo/United States Coast Guard, Colby Buchanan)