Universal Mind, I disagree with you on a lot of things.

Saddam would have been overthrown by the people of Iraq. There is no way it could last forever. If Hitler took over the world, he would have been overthrown. All dictatorships, no matter how terrible, can be defeated by its people.

The power of a government is derived from its people. When people unite and stop interacting with government, and realize that they are the ones giving there governments the power to oppress them, that government will fall very soon.

Saddam and his military couldn't have fought against millions of Iraqis. When such a massive movement took place, Saddam's soldiers probably would have turned against him.

Same thing would have happened to Hitler. Imagine, Billions of angry people versus Hitlers military. It would be bloody, but Hitler would have been overthrown.

You underestimate the power of the people. No government can exist unless the people allow it. When enough of the population realizes that, the people will take power. The United States doesn't need to go around liberating people.

Also, remember that the United States supports and trades with lots of dictatorships. Many dictatorships were supported by the US, until there people finally overthrew the United States' puppet in power. We only remove them when there puppet turns against them.