British agents to evade restrictive limitations on domestic telephone tapping. The mutual surveillance and sharing of information between allies of the UK and US resurfaced again during the 2013 mass surveillance disclosures. As described by the news magazine Der Spiegel, this was done to circumvent domestic surveillance regulations: Britain's GCHQ intelligence agency can spy on anyone but British nationals, the NSA can conduct surveillance on anyone but Americans, and Germany's BND (Bundesnachrichtendienst) foreign intelligence agency can spy on anyone but Germans. That's how a matrix is created of boundless surveillance in which each partner aids in a division of roles. They exchanged information. And they worked together extensively. That applies to the British and the Americans, but also to the BND, which assists the NSA in its Internet surveillance. In 2013, Canadian federal judge Richard Mosley strongly rebuked the Canadian Security Intelligence Service (CSIS) for outsourcing its surveillance of Canadians to overseas partner agencies. A 51-page ruling says that the CSIS and other Canadian federal agencies are illegally enlisting US and British allies in global surveillance dragnets, while keeping domestic federal courts in the dark. Gallery Officially released The following documents were jointly released by the NSA and the GCHQ in 2010: Disclosed by Edward Snowden The following documents were leaked by Edward Snowden during the course of the 2013 Global surveillance disclosure: See also ABCA Armies Air and Space Interoperability Council (air forces) Anglosphere AUSCANNZUKUS (navies) CANZUK Collective intelligence Combined Communications Electronics Board (communication-electronics) Five Eyes (intelligence) Five Nations Passport Group Signals intelligence by alliances, nations and industries Special Relationship The Technical Cooperation Program (technology and science) Notes References Further reading Bryden, John. Best Kept Secret: Canadian Secret Intelligence in the Second World War. Toronto: Lester Publishing, 1993, . Frost, Mike and Michel Gratton. Spyworld: Inside the Canadian and American Intelligence Establishments. Toronto: Doubleday Canada, 1994. Hamilton, Dwight. Inside Canadian Intelligence: Exposing the New Realities of Espionage and International Terrorism. Toronto: Dundurn Press, 2006. Hager, Nicky (1996) Secret Power, New Zealand's Role in the International Spy Network; Craig Potton Publishing, Nelson, NZ; ; (ONLINE EDITION ) Richelson, Jeffrey T.; Ball, Desmond (1985). The Ties That Bind: Intelligence Cooperation Between the UKUSA Countries. London: Allen & Unwin. . Richelson, Jeffrey T. The United States Intelligence Community, fifth ed. Westview Press, Boulder, Colo.; ; 2008. Rosen, Philip. The Communications Security Establishment: Canada's Most Secret Intelligence Agency. Ottawa: Library of Parliament Research