 Ellsberg is a founding member of the Veteran Intelligence Professionals for Sanity.In September 2015 Ellsberg and 27 other members of VIPS steering group wrote a letter to the President challenging a recently published book, that claimed to rebut the report of the United States Senate Intelligence Committee on the Central Intelligence Agency's use of torture.In December 2015, Ellsberg publicly supported the Tor anonymity network, referencing its utility for whistle blowing in general for the maintenance of democracy via the First Amendment.