The federal government is in shutdown mode. Does it affect your research? Well, maybe.
Some federal agency web sites are down until funding is restored, while others are available but not being updated.
The Library of Congress, Census Bureau, National Park Service, and U.S. Dept. of Agriculture are among the federal agencies that have shut down their websites. That means, for example, that if you need to access online government information, e.g., audio files of natural sounds recorded at the Grand Canyon and provided by the National Park Service, or agricultural statistics such as dairy cattle and milk production from the National Agricultural Statistics Service, you’re out of luck for now.
If you want to access the FBI files on James Cagney, however, you still can. That FBI web site is available but not being updated during the shutdown. A number of other agencies are continuing some functions; see more information about what’s affected by a government shutdown at usa.gov.
What determines what an agency does during a shutdown? See the memorandum to heads of executive agencies and departments under “Information Technology” that provides guidance on “Planning for Agency Operations during a Potential Lapse in Appropriations.”