NPR's business news on All Things Considered, May 7, 2006, included this story on organic dairy farms:
Farmers Say Mega-Dairies Milk the Organic System
For milk to be labeled organic, the USDA says that cows must be raised on pesticide-free feed, without hormones. But it doesn't regulate how much time the cows must spend out in pasture. As organic mega-dairies with thousands of cows sprout up across the country, small-dairy farmers complain that some so-called "organic" cows don't get enough meadow time. Listen online.