Crackpot.

Those of us who follow the activities of the 9/11 truth movement know that one of the gateway drugs into the conspiratorial mindset was 9/11: The Big Lie, a book by Frenchman Thierry Meyssan. In it, he argued that a missile–not a passenger jet–struck the Pentagon. The book did very well in France, selling over 300,000 copies in the first months of its release, and has since been translated into 28 languages. Marion Cotillard, who took home the best actress award at the Oscars this year, apparently spent a little too much time with Meyssan’s book. She thinks the twin towers were knocked down as part of an insurance fraud scheme.