I agree with the above commenter about the PDC. I enjoyed the first part of the Philly demo, but when the march got started I somehow found myself surrounded by those people chanting their slogans and sounding generally ridiculous. I spoke with two members of the PDC just trying to find out what they were about... they go on and on and on as if they know everything - they don't bother having conversations, it's just talking, lecturing. So, I think that ruined my experience of the latter part of the demo. It grated on the nerves after a while, so I bailed.