Sometimes, it's fun to read McAdams's site and see some of the really, really STUPID things that conspiricists have asserted.
One of my favorites that I was just reading about the claim (via Garrison and others) that the motorcade route was changed "at the last minute."
http://mcadams.posc.mu.edu/route.htm
McAdams says, according to Garrison's book, Garrison noticed that the motorcade route in the morning paper showed it going down Main and then onto the Stemmons Freeway to the Trade Mart. So why did it all of a sudden get changed to go down Houston and then turn onto Elm? Could it be so that it could go past the SBD? Hmmmm? Suspicious!
But not. In fact, there is a VERY good reason why the motorcade turned down Houston onto Elm - YOU CAN'T GET ON THE STEMMONS FREEWAY FROM MAIN!!!!!!
There's no on-ramp!
So if you are on Main and want to get on the freeway, you have to bump over to Elm...