Slavery Footprint is a newly launched website and mobile app to help consumers calculate how many slaves are working to prodvide what you use, wear and eat. It’s easy to navigate, and “fun” to use, if something that informs you that dozens — or hundreds — of human beings, many of them children, are working under the worst possible condictions to make sure you have your chocolate bar, designer jeans and MP3 player. My score was 25, and I am grateful that the website also points me to actions to make slavery truly a thing of the past.