I'd say our ability to supersize emotions are American-made special effects. In European countries, people mostly stay close to home and whatever rage there is simmers under the surface - it's what made the plays of Shakespeare and Harold Pinter so good.
My mind leaps to my theory about presidents - that there are two kinds, ones who have a lot of sex and the others who start wars. In short - and don't quote me, because this is an incomplete expression of a more complex premise - I believe blow jobs prevent war.