California's water authority is voting today on how much we'll have to cut back. And it's going to be a lot more than we've cut so far. New figures show that in March, residents in the state cut back by just 3.5 percent, far lower than the Governor's mandated 25 percent. Agriculture, meanwhile, is a different story. Water from the snow pack and federal authorities has been slashed, so farmers are increasingly pumping water from underground. Some farmers have dug so deep, they're hitting water that fell to the earth tens of thousands of years ago. Turns out that's what Saudi Arabia did too; now that country is giving up on farming. We hear what could be a cautionary tale for California.