Most protesters are not friends of liberty. They usually are kids with alot of free time on their hands, often socialists and commies, who just want to go out and be angry at something. See this thread
http://www.ronpaulforums.com/showth...n-Sheep-s-Clothing-yeoman-s-work-by-Eric-Odom
And yes, many of them ask to get brutalized for the attention. It doesn't necessarily make the cops right for doing it, especially if the cop didn't have enough self control and just sprayed someone because they pissed him off. But the protestor who asked for it is still an idiot and will garner no sympathy from me.
I don't know why they were corralled, but it makes me question if they were "peaceful" protestors. Out of all those people protesting, why were only those few corralled?