I'll add my input, the Federal Reserve earns hundreds, trillions of dollars a year by financing international trade. If you want to buy oil in the Middle East or anywhere else in the world, you will have to buy USD from the US Central Bank.
The problem is, nobody knows who exactly owns the Federal Reserve, as it's a private corporation, it's said that Europeans are behind it.
And the other problem is, Chinese, Middle Easterners and others would like to end USD monopoly in international trade (not to switch to EUR but to a basket of currencies like the Pound, Yuan, Yen, Euro, Rouble etc), in this case we would be heading for a major USD devaluation AND depression, as the US could not afford 70% consumer spending anymore. USA GDP is 70% consumer spending.
