Now, the state has gone a step further and passed AB 1437. Starting in 2015, eggs cannot be sold in California if they come from farms that lock hens in tiny battery cages where they can't even spread their wings. The agriculture industry is trying to fight this new rule. Leading the charge is Missouri Attorney General Chris Koster, who's suing to try to overturn this new rule in federal court. Missouri produces 1.7 billion eggs each year, and exports about 1/3 of them to California. We reached out to him for comment.