Photo: A Hannaford supermarket in Troy, New York. Photo: Tyler A. McNeil / Wikimedia Commons (CC BY-SA 4.0). When shoppers buy seafood labeled “sustainable” or “local,” they expect those claims to be true. But a new federal class-action lawsuit accuses supermarket chain Hannaford of using deceptive marketing tactics to mislead consumers into believing its industrially farmed salmon is sustainably produced. …