A man-made disaster -- the shutdown of the federal government -- is disrupting United States' national parks, monuments and recreational areas.
And Nevada tour companies are also taking a hit. Scott Halstead, chief financial officer for Viator.com, a business that arranges tours around the globe, calls the shutdown "unprecedented," far exceeding the impact of rail strikes, for example, in the company's European market.
Scott Halstead, Chief Financial Officer of Viator.com