Food should be local but good ideas should flow freely.
Here is a reprint from Adbusters (Canada) article on an Indian (as in the subcontinent) blog.
It is certainly true that if we paid the true cost of food, a hamburger would be about $8 at McDonalds and a pound of broccoli would cost, well pretty much what it does now, if you buy it local.
Have fun folks, I have to head down to the farmers market to get some supplies.