Thanks, but I try to limit my consumption of books written by CIA personnel to one or two a year. Let's stipulate that the Ayatollahs are just as bad as the Shah eventually was. By any objective measure, however, both of those are worse for the Iranian populace and for USA interests than Mosaddegh ever was. If "Mosaddegh's use of emergency powers" is at all relevant to the discussion, then your premise must be that USA should act as a sort of "World Police", responding to every imperfectly-capitalistic action of elected leaders anywhere. I reject that premise, and I find that history rejects it more as time goes on.

I wasn't the one who initially asked why USA traditionally favors Saudi over the Ayatollahs, but frankly your response to that query is an exercise in question-begging. They wouldn't chant "death to America" if that chant weren't rhetorically useful. It wouldn't be rhetorically useful if USA hadn't intervened to remove an elected Prime Minister.