FILE - In this June 1, 2011 file photo, water is released through the outlet tubes at Grand Coulee Dam, Wash., on the Columbia River. The way dams and storage reservoirs on the Columbia River and its tributaries are managed could change dramatically in a short five years if negotiators from the United States and Canada don't strike a deal. At issue is the Columbia River Treaty, a transboundary agreement that has governed flood risk management and hydropower production for more than five decades. (AP Photo/Nicholas K. Geranios, File)
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