The US did try and close the borders. https://www.whitehouse.gov/presidential-ac...

		generalizations on Jan 12, 2021 \| parent \| context \| favorite \| on: U.S. to require negative Covid-19 tests for intern... The US did try and close the borders. https://www.whitehouse.gov/presidential-actions/proclamation... https://www.cnn.com/2020/02/02/us/coronavirus-us-travel-rest...