Optional--related course readings

http://www.nytimes.com/2012/10/14/magazine/californias-central-valley-land-of-a-billion-vegetables.html?WT.mc_id=NYT-L-P-FOOD-MAG-101412-L1

http://www.nytimes.com/2012/10/14/opinion/sunday/the-self-destruction-of-the-1-percent.html