Do you ever wonder whether some of the failures are not really failures, e.g., imagine if the powers that be wanted simply an indefinite US military foothold/presence in the Middle East, and knew they'd have it with the Iraq war's situation of a nation of always-battling groups needing security - in fact, I've read the reason England created Iraq the way it did was precisely to use the strong animosity between the factions to make them easier to rule, throwing together enemies into the 'nation' of Iraq.
If you go along with this sort of thinking, it raises questions how able the government is to pursue such an agenda with false stories about 'wanting' democracy for the middle east, knowing how it'll go badly, but really getting what they're after, the ongoing troop presence - and really, a war here on the democratic idea that the government should be up fron with the US voters about its agenda for it to be debated, rather than manipulating the political debate so that there agenda is not revealed.
It all falls under the topic of whether the government should 'do what it thinks best and hide it from the public who will make the wrong choice', but that horse left the bard long ago.
The US public's opposition to entering WWII against Hitler wasn't our proudest moment in our democracy, was it, as the president secretly pursued an agenda of getting into the war.
With just a little selective memory - we remember our nation passionately entering the war a lot more than the previous anti-war period - the story sounds pretty nice.