Up to a million federal workers face enforced unpaid leave because of the U.S. government shutdown.<br/> <br />National parks like Yellowstone are among the facilities facing closure until the budget crisis is sorted out.<br/> <br />Those who run businesses in the park say they can only wait and see what happens next.<br/> <br />(SOUNDBITE)(English) UNIDENTIFIED STORE OWNER SAYING:<br/> <br />"If the government shuts down we're going to give it either 24 or 48 hours to see if it opens back up. If not we'll have to close down."<br/> <br />At the Gettysburg battlefield site in Pennsylvania visitors were equally dismayed.<br/> <br />(SOUNDBITE)(English) UNIDENTIFIED VISITOR SAYING:<br/> <br />"It's sad. Look how many people died for this cause for them to shut it down and can't come together at all. It's kind of bad."<br/> <br />(SOUNDBITE)(English) UNIDENTIFIED VISITOR SAYING:<br/> <br />"When you plan a vacation for six, nine, 12, months, and you come to the location that you want to visit and you can't visit it...it's upsetting
