I noticed it too. They looked real nervous about being there. Another thing, why in the world would they put themselves in a line between a crowd and a steel fence? That’s just plain stupid, not what a well trained crowd control squad would do.
They were there to incite, plain and simple, that’s Obama’s MO... to elicit a fight. My guess is that they hoped someone would start a ruckus. No doubt they had the hoards on hand in the background somewhere. And they would be able to justify their action by saying the Tea Party terrorists had threatened “The Law”.