Noam Chomsky is both a god in the linguistics field and a thought-provoking commentator on American politics.

http://chomsky.info/articles/20080101.htm

A quick romp through US military history, Vietnam, Cuba, Russia, China, Iran; some speculation on how the US would behave if it were a democracy, a bit of Orwell. Classic Chomsky stuff.

But the key observation: we (the US) own the world, so of course whatever we do is right. Period.