SPOILER:
except that, erm, the Church actually doesn't hire anyone. Did you read the book at all? The bad guy took advantage of an extremely pious, very uneducated man with a violent past, and convinced him he was doing God's work. The Opus Dei leader is actually portrayed quite sympathetically, once you backtrack through the book with all the information that the author hides until the end. The only criticism actually levelled at it is the self mutilation thing.
I think Brown believes, if his ideas are in sync with Langdon's, that even though all religions are basically hogwash hijacked by powermongers from the idealists that start them, they are actually a positive influence on people. He seems to think Faith and a connection to the Divine are good for the soul. A naive view, IMHO, but calling him antireligious is simplifying his views too much.
I found it interesting that his two Langdon books mirror each other. In one the bad guy is ultracatholic, in the other he is anticatholic. Yet in both he hides this fact with sleight of hand to make you predict the opposite outcome.
Can anyone recommend a less formulaic alternative to him? I LOVE this kind of symbologic story, and books that explore the mystical side of the Church. i've read the DC in one sitting, then borrowed A&D the next day and also read it in one sitting. I recognize it is harmless pap, but it's pap about stuff I love.
And yes, I HAVE read both the Pendulum and Name of the Rose. Also the Cryptonomicon, I'm starting with Quicksilver now. All those are invalid recommendations