That's the problem, it wasn't a job worth doing. A democracy anywhere in the middle east will be an enemy to the US. People who hate us will elect governments hostile to us. Of course iran wants to dominate the region, the problem is that the iraqi shiites want that, too. And we have handed them the opportunity. This shia theocracy will also include kuwait and the saudi oilfields, hope you have a bicycle, gas is gonna get pricey. As for israel, we learned a thousand years ago crusader kingdoms were a bad idea.