Christopher Knight became a Freemason to better understand how things are designed & planned in cities, etc.
Pierre_Charles_L'Enfant was the architect & city planner of Washington, D.C.
http://lostsymboltweets.blogspot.com/2009/06/welcome-to-key-to-lost-symbol-tweets.html
http://freemasonry.bcy.ca/anti-masonry/washington_dc/washington_dc.html
Of course any secret society has a dilemma. How much info can they really ever allow to be out in the open? Thus, people on the outside of it will ask questions & make various connections.
http://www.freemasonrywatch.org/washington.html
http://www.masonicinfo.com/books/thelostsymbol.htm
http://www.theforbiddenknowledge.com/chapter3/
http://conspiracyrealitytv.com/national-geographic-secrets-of-the-freemasons/
