More than 4,000 groups and websites have signed on to support a day of protest against U.S. National Security Agency surveillance programs, scheduled for Tuesday, February 11, 2014.

stopnsa

Among the groups supporting the day of Web protest are the American Civil Liberties Union, Amnesty International, BoingBoing, Demand Progress, the Electronic Frontier Foundation, Fight for the Future, Free Press, Mozilla, Reddit and Tumblr.

Organizers—including TheDayWeFightBack.org—are modeling the protest after one two years ago that helped defeat two online copyright bills, the Stop Online Piracy Act and the Protect IP Act.