FILE - In this July 28, 2014, file photo, lightning strikes over Lake Mead near Hoover Dam that impounds Colorado River water at the Lake Mead National Recreation Area in Arizona. California and Arizona have missed a federal deadline for seven Western states to wrap up work on a plan to ensure the drought-stricken Colorado River can deliver water to millions of people who depend on it. (AP Photo/John Locher, File)
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