At parks like Yellowstone National Park and Mount Rushmore, visitors from the U.S. and around the world are turned away after America's national parks close as part of the government shutdown. Sarah ... more 
At parks like Yellowstone National Park and Mount Rushmore, visitors from the U.S. and around the world are turned away after America's national parks close as part of the government shutdown. Sarah Irwin reports. less 
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Tue, Oct 1, 2013 9:51 PM EDT