The following excerpt is from the Washington Post:
Visitors to the Smithsonian Institution and the National Archives will notice changes to summer hours and exhibitions as of May. The Smithsonian will begin closing certain galleries on a rolling basis come May 1 because of across-the-board budget cuts known as sequestration. The National Archives, which held extended summer hours in the past, will maintain its regular schedule of 10 a.m. to 5:30 p.m.
The leaders of the Smithsonian, the National Park Service and the National Archives and Records Administration testified before Congress on Tuesday about the effects of the budget cuts. The House Committee on Oversight and Government Reform questioned the directors about how their agencies are handling the approximately 5 percent reduction and how it might affect the public.