Google "petrodollar" and it will explain why we are so involved in the Middle East. Part of the deal with the Saudis, and the other oil exporting countries (OPEC) is that we would protect their oilfields with our military and furnish them weapons if they would only deal in US dollars and also buy our debt. Iran broke the agreement and began dealing in Euro dollars and also invaded Kewait--to keep the petrodollar system in place it was imperative that we get Iran back on track, so H.W Bush sent in Storman Norman. It really is more complicated than it appears since our economy is being supported by non-oil producing countries like Japan demanding our dollar so they can buy oil. If there is a demand for our dollar, we just print what they need since it's not backed by anything, and sell the bonds (debt) to OPEC. I need to echo Poppy, why doesn't anyone seem to care or realize that we can't let people sue Saudia Arabia because it would really hurt our economy if they stopped honoring our bonds and called in our debt.