J.S. West vice president Tom Silva in their $3.2 million &quot;enriched colony system&quot; in Atwater, California,  August 11, 2010. California's Proposition 2, passed in 2008, requires that egg-laying hens in California be able to fully extend their limbs, lie down and turn in a circle within their enclosures. .CREDIT: Max Whittaker for The Wall Street Journal.EGGS