What is "thinthread"

ThinThread is the name of a project that the United States National Security Agency (NSA) pursued during the 1990s, according to a May 17, 2006 article in The Baltimore Sun. The program involved wiretapping and sophisticated analysis of the resulting data, but according to the article, the program was discontinued three weeks before the September 11, 2001 attacks due to the changes in priorities and the consolidation of U.S. intelligence authority.

The "change in priority" consisted of the decision made by the director of NSA General Michael V. Hayden to go with a concept called Trailblazer, despite the fact that ThinThread was a working prototype that claimed to protect the privacy of U.S. citizens. ThinThread was dismissed and replaced by the Trailblazer Project, which lacked the privacy protections. A consortium led by Science Applications International Corporation was awarded a $280 million contract to develop Trailblazer in 2002.