http://en.wikipedia.org/wiki/The_Doughnut
http://www.newsweek.com/inside-englands-nsa-253816
http://www.wired.com/2009/06 , http://www.designbuild-network.com/projects/gchq
http://www.globalsecurity.org/intell/world/uk/gchq.htm
https://www.google.ca/search?q=gchq+Doughnut&safe=off&es_sm=93&tbm=isch&tbo=u&source=univ&sa=X&ei=wN2EVJn0LcG4oQSKrICYCA&ved=0CDQQsAQ&biw=1280&bih=699
http://www.dailymail.co.uk/sciencetech/article-2784069/The-spaceship-takes-shape-Drone-footage-reveals-foundations-Apples-new-donut-HQ-futuristic-175-acre-building-site.html
http://jf-databits.blogspot.ca/2014/12/new-details-apple-s-circular-spaceship_7.html
