 Every day in all our little food decisions, we're unconsciously balancing welfare, the environment, price, personal ethics. And you might think at this point that knowing more would make my choices easier. In fact, I'm starting to find things much more difficult. Next time, I face another dilemma, when I discover that we might have to make a choice between what's good for the chicken and what's good for the planet. So you can't have it both ways. You can't be producing...