Give us the low down.
Say "please." :)
A lot of the Mehdi Army is made up of Iranians. Not Iraqis who were trained in Iran (although there are some of those, too), but America-hating, mullah-worshiping trash from Iran.
Iran hates this democracy. They hate that Iraq is free. They know there's not much they can do about it other than stir up people in the streets about this security agreement and even that's being largely ignored.
I doubt they'll even start launching their stupid mortars and rockets at us again like they did this past spring, since they had their asses royally kicked for that.
So, they're just making some whiney noise with these stupid demonstrations they have here on Fridays. They've been doing this; for some reason the media is just now cluing into it.
You are a jewel!