Wait... People are pulling placards for McCain, and replacing them with placards for Romney... in front of running TV cameras? This looks like a McCain-ABC dirty trick: getting Romney blamed for a staged dirty trick. Why would they do this in front of TV running cameras. “Ooh, look at me! look at me! I’m doing dirty tricks! I work for Mitt Romney!”
So to verify the authenticity of this, you rely on the cameraman?