Actually I did mean that seriously. I've read for years about the water supply problem for that area and was wondering if we'd be better off just having the crops there just for the water usage reason. You're of course right, at least for that area, about the farm land being turned into housing tracts.
It's happening just about everywhere. There used to be farms outside of the beltway (in DC) now there are housing tracts all the way to the West Virginia border (and even there housing has been going in).
We of course still don't have the problems that other countries have or will have with food. We still export a great deal.
I wonder what kind of impact turning the Tobacco fields over to grain would have?

I thought it was rather hypocritical of Castro to talk about the bio-fuel causing problems with feeding the world when his number one cash crop is tobacco.