Last night at the Sunset Blvd. staple Book Soup, autism-unfriendly comedian Denis Leary was signing copies of his book, Why We Suck, when he was approached by two very curious fans. One of them tentatively asked whether Leary endorsed the idea of a reinvestigation into the events of 9/11, which Leary said would actually be a plotline in the upcoming season of Rescue Me. Then, a second fan asked him a more specific question about conspiracy theories surrounding Building 7's collapse. After a pause, Leary began, "You don't want to get into that with me, because several of the guys who I know really well were helping to hold that building up," upon which the fan, who was recording the incident, was swarmed by Book Soup security (they even blocked his camera). What do they know?! Video, after the jump: