Robert Zubrin talked about his book, Energy Victory: Winning the War on Terror by Breaking Free of Oil. He argued that the United States is subsidizing a war against itself because of its dependence on oil, a resource controlled by its enemies. He says that if Congress passed a law requiring all new cars sold in the United States to be flexibly fueled, OPEC's control on the world's transportation fuel supply would be diminished. Robert Zubrin is the president of Pioneer Astronautics and president of the Mars Society, an organization dedicated to the exploration and settlement of Mars. He is the author of numerous nonfiction and science fiction books including The Case for Mars: The Plan to Settle the Red Planet and Why We Must, Entering Space, and Mars on Earth.