America could become the worlds largest oil producer

[JWsleep]

Of course, it wouldn't help with the greenhouse gas issue. Plus, I wonder what the process itself does to the environment? We're going to need new sources of oil even in the most optimist alternative fuels fantasy, so this would certainly help in that regard. Plus, the less money we give to OPEC, the better!

(I think Canada has huge oil shale deposits as well.)