Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. October 08, 2011 US Activists Protest in Washington, One Arrested VOA News A group of demonstrators sit outside the entrance to the National Air and Space Museum in Washington Photo: AP/Jose Luis Magana A group of demonstrators sit outside the entrance to the National Air and Space Museum in Washington after police pepper-sprayed a group of protestors trying to get into the museum Saturday, Oct. 8, 2011. Washington's National Air and Space Museum was closed late Saturday after a large group of demonstrators tried to push past security guards and enter the building. Smithsonian Institution officials say at least one demonstrator was pepper-sprayed when protesters, estimated between 100 to 200, attempted to enter the museum with large signs not allowed inside the museum. One person was arrested. It is not immediately clear if the protesters are affiliated with the Occupy DC protest that sprung up last week in the city, an offshoot of the larger Occupy Wall Street movement that began in New York last month. The Occupy Wall Street movement has spread to several major U.S. cities, with demonstrators protesting a variety of issues, including corporate greed and economic equality. .