A Romney administration could bring runaway fracking to the nation's bread basket. California's central coast is famous for its breathtaking scenery, world-class wines and astonishingly productive farmland. It also sits atop the Monterey Shale – a massive reserve of oil, estimated as large as 15 billion barrels. Fracking's water contamination is a grave threat to the region's $8 billion agriculture industry. The Bureau of Land management has begun leasing the land for new drilling, but no oil companies yet have permits to drill.