That's where the Eagles were.
The men in the bright green row are the police officers at the lead of the protest, yet somehow the anti-US crew managed to get a whole bunch of large signs there. The problem is that that space was already occupied by counterprotesters. Notice that the orange signs are much larger than the men in green. I don't think that anyone posting here was carrying one of those, let alone a bunch of them.
Some of the greenies might also be the lawyers and media, but if you look at other photos you will notice that they maintained a row at the head of the protest.
Look at the elongated shot. The front row is on grass.
http://www.freerepublic.com/focus/news/1806246/posts?page=85#85