 The U.S. wanted to foster closer ties with the Saudis to avert another crisis. The Carson Group had a great article on this. The best way to accomplish that was to get the Saudis to invest the proceeds from their oil sales in the U.S. by buying U.S. assets. And this was already happening with the Saudis starting to invest a lot of their wealth in the U.S., but the goal was to continue to enhance that trend. There are three reasons why the dollar will likely to remain dominant.