FILE – In this May 25, 2017 file photo, a class of eighth-grade students and their chaperones sit in a meadow at Yosemite National Park, Calif., below Yosemite Falls. Some of the West’s iconic national parks are beginning to partially close as they deal with overflowing restrooms and vandals on the 10th day of a federal government shutdown. (AP Photo/Scott Smith, File)

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