Yesterday, NPR ran a great seafood story. It seems that restaurant-goers in Florida are ordering one fish and being served another. The St. Petersburg Times surveyed 11 restaurants that boasted grouper on their menus; DNA tests revealed that nearly half were serving cheaper substitutes. Who needs cleverly deceptive sales techniques — like bait and switch — when you can just use an oldie but goodie: lying?

Unfortunately, despite recent progress in letting consumers know where their individually purchased seafood comes from, it’s not always so easy to verify that the catch of the day at your local seafood joint is actually … the catch of the day.