Heresy Corner has a good post on the Templar theme in Anders Behring Breivik’s manifesto. It particularly discusses the author’s ambiguous claim that the whole thing is to be read as “fictional” (scare-quotes in the original). Opening the post with a quote from Umberto Eco’s Foucault’s Pendulum sets the right tone from the start:
“The lunatic is all idée fixe, and whatever he comes across confirms his lunacy. You can tell him by the liberties he takes with common sense, by his flashes of inspiration, and by the fact that sooner or later he brings up the Templars.”
Heterodoxology 