there are some innocent people who did get caught up in this - its true. and they will win settlements from the City, Ron Kuby has one of the clients - the normal pay out is $1500 per each hour you were wrongly held.
one of the people who was held was actually a republican volunteer for the convention, held for 30 hours. Kuby is his lawyer.
There were at least 3 protestors on the floor of the GOP convention (2 during President Bush's speech).
I suspect that some of them got in there as "Republican" volunteers.