This summer, concerned consumers are taking a high-tech stand in supermarkets across the nation to inform other shoppers about the labor violations associated with Hershey’s chocolate products. Individuals are leaving smartphone-enabled "Consumer Alert" cards on the shelf in front of Hershey products, as well as on Hershey's S'mores promotional displays, reading: "Hershey's chocolate is tainted with child labor."...The alert cards include an innovative use of a QR code to allow shoppers to take action on their smartphones right in the store as part of a larger campaign, including an online petition...Consumers interested in participating in the campaign can go to www.raisethebarhershey.org to download a consumer alert card, print it out, film and upload their own experiences.