Activist groups should bring about a greater awareness of worker rights issues and add a moral voice to global economic matters, says David Schilling of the Interfaith Center on Corporate Responsibility.

“When we say grace we are grateful for the food on our plates. But where did that food travel? Who picked it? How did it get to us? As people of faith we are called to think about that.”

"This is a new wave of activism through what one eats, that what we eat and what we buy is a vote of confidence in our highest values," says Rabbi Shmuly Yanklowitz.

Meat is kosher if it has been prepared according to Jewish law and certified so by a rabbi. But what if the plant managers were accused of unfair labor practices?