name for Nazi Berlin. 2000s At the 2000, Whitney Biennial, at the Whitney Museum of American Art in New York, Haacke presented a piece that is a direct reaction to art censorship. The piece called Sanitation featured six anti-art quotes from US political figures on each side of mounted American flags. The quotes were in a Gothic style script typeface once favored by Hitler's Third Reich. On the floor was an excerpt of the First Amendment of the U.S. Constitution, guaranteeing freedom of speech and expression. Lined up against the wall were a dozen garbage cans with speakers emitting military marching sounds. Haacke notes that "freedom of expression is the focus of the work". Commissions In 2000, the permanent installation DER BEVÖLKERUNG (To the Population) was inaugurated in the Reichstag, the German Parliament building in Berlin, and in 2006, a public commission commemorating Rosa Luxemburg was completed in a three-block area in the center of the city. In 2014, it was announced that Haacke would be installing one of his works as part of the annual Fourth Plinth commission in 2015. His winning commission of a bronze sculpture of a horse’s skeleton, titled Gift Horse, comes with an electronic ribbon tied to its front leg that displays a live ticker of prices on the London Stock Exchange. Use of Law Along with Adrian Piper and Michael Asher, Haacke uses a version of Seth Siegelaub and Robert Projansky's 1971 artist contract, The Artists Reserved Rights Transfer and Sale Agreement, in order to control the dissemination, display and ownership of his art works. Writing and publications On being considered a political artist Haacke says: "it is uncomfortable for me to be a politicized artist.... the work of an artist with such a label is in danger of being understood one dimensionally without exception.... all artwork have a political component whether its intended or not". Jack Burnham comments on Haacke's political growth and links its roots to exposure to a time of political unrest in the US surrounding the Vietnam War. Burnham also points to Haacke's joining the Arts Workers Coalition and the boycott of the São Paulo Bienal in Brazil in 1969 as catalyst for the artist's work to take a political direction. Writing by Haacke and his close friends and colleagues, including documentation of his work, are collected in two separate books by the artist. Hans Haacke first published a book