It is an unconscious perception of the world that causes us to see mass slaughter of some animals but not others as normal, and tells us we should not get too worked up about it.
Social media has been a powerful tool for Marissa Alexander's defense, while providing creative ways to discuss domestic violence and self-defense.
Jon Letman is a freelance journalist on Kauai. He writes about politics, people and the environment in the Asia-Pacific region. Follow him on Twitter @jonletman.