Greystone

Greystone or Graystone may refer to:

Locations

United States

Greystone (architecture)

Greystones are a style of residential building most commonly found in Chicago. As the name suggests, the buildings are typically grey in color and were most often built with Bedford Limestone quarried from South Central Indiana.

The building style first began to appear in the 1890s and continued through 1930s with two major approaches in design. The first style, between 1890 and 1905, was Romanesque in nature with arches and cornices. The second style was predominately built in a Neo-classical design incorporating smoother limestone blocks featuring columns and bay windows. Most of the homes were initially built in the North Lawndale neighborhood but they can still be found throughout many neighborhoods of Chicago.

Greystones were built in a wide variety of sizes to accommodate different residential needs with most being 2 to 3 floors in size, many commonly containing 2 to 3 flats but some up to 6. Regardless of their size, they were always built with the limestone facade facing the street to take advantage of the limited size of standard Chicago lots (25' x 125'). There are an estimated 30,000 greystones still remaining in the city and many citizens, architects and preservationists are working to revive those that remain through the Historic Chicago Greystone Initiative.

Greystone (CIA operation)

Greystone or GREYSTONE (abbreviation: GST) is the former secret codeword of a Sensitive Compartmented Information compartment containing information about rendition, interrogation and counter-terrorism programs of the CIA. These operations that began shortly after the September 11 Attacks. It covers covert actions in the Middle East that include pre-military operations in Afghanistan and drone attacks.

The abbreviation GST was first revealed in December 2005, in a Washington Post-article by Dana Priest, which says that GST includes programs for capturing suspected Al-Qaeda terrorists, for transporting them with aircraft, for maintaining secret prisons in various foreign countries and for the use of special interrogation methods which are held illegal by many lawyers. In 2009, the GST-abbreviation was accidentally confirmed in a declassified document written by the Justice Department's Office of Legal Counsel in 2004.

The full codeword was revealed in the 2013 book Deep State, Inside the Government Secrecy Industry by Marc Ambinder and D.B. Grady. It says that the GREYSTONE compartment contains more than a dozen sub-compartments, which are identified by numbers (shown like GST-001). This makes sure that these sub-programs are only known to those people who are directly involved.