Quote Taken from "The Da Vinci Cock" by Laura Miller :

"Fortunately for Brown, as the book has filtered into the awareness of people who are qualified to refute most of its claims, he's always been able to plead fiction; "The Da Vinci Code" is, after all, only a novel. Although he begins the book with a statement that it accurately describes real documents, and that the Priory of Sion really does exist, even this leaves him with plenty of wiggle room. The book's selling point is the impression that it contains large and provocative servings of historical fact; yet when challenged on the many fallacies in his novel, Brown can always assert that, as a work of fiction, "The Da Vinci Code" can't be held to any standard of accuracy."


haha.. isnt that true...

To me, Dan Brown is just a person with a passion for lying... and since he can't lie openly, which would insult his intelligence as well as create a case for slander, he chose to hide in fiction and pinch stupid people's brains.