This interesting interview of James Woolsey was played on NPR's Weekend Edition this morning. It goes over the need to do for oil what was done for salt nearly 100 years ago. Salt used to be a resource with strategic importance enough to cause wars over salt mines, but refrigeration made Salt irrelevant and now salt is just a seasoning.
James Woolsey is a Washington insider with decades of experience. FWIW. His contention is that oil is a national security risk. The figure is that the U.S. is essentially borrowing $1 billion/yr due to oil imports because we import 70% of our oil needs. He doesn't discuss the peak oil issue behind why we import 70% of our oil (the U.S. is way past it's peak of production which occurred in 1971).
Another point he makes is that renewable energy resources like Wind or Solar provides electricity. Since the transportation system is largely oil based, creating electricity does not power oil driven vehicles. As good as it is to installing renewable energy systems it doesn't do anything to reduce dependence on oil. BTW I made the exact same argument in a podcast from last year: Offshore drilling on the U.S. Outer Continental Shelf, an Interior Department hearing, held in San Francisco, April 16, 2009