Yes, Saddam was plagued by coups and assasination attempts, but he still ruled. I'm not saying the Equation is perfect or incorruptible, but it works long enough. The Iraqis are fighting the Americans who are attempting to use fear, just as they fought Saddam who attempted to use fear, but Saddam kept enough of them in fear to stay in control, I'm just hoping America doesn't come to the same conclusion.
I agree that a 'worst case scenario' is unlikely, I don't see America dropping nukes on Iraq or the like, but if America are pushed out, I can garauntee that the current administration will not just bring them home, **** does NOT want another Vietnam this close to election, from his own bigoted point of view, it may seem better to bomb the living sh*t out or Iraq, I can see the speech now :-
'Many nations have condemned this, but America has a right to protect itself against Terrorism. These people, by attacking and killing American Men and Women have sided with Terrorism and against Freedom. For this reason I we decided that saturation bombing was the only way to be sure we got everyone involved. Civilan casualties were high, but, Ladies and Gentlemen, this is War and War is Hell.'
That'll pretty much be it, but with a speech impediment

Edit : As I recall, this Russian 'anti-jamming' device didn't work, and most of the other weapons may cause irritation, the may take down a helicopter or two, kill 20+ soldiers etc, then the owner would get hit be a clusterbomb or the like and that's the problem solved.