Buyer beware.If you walk into a supermarket, convenience store, or other retailer anywhere in America and notice that they have Mountain Dew and Sunny Delight in their refrigerators, and Swedish Fish, Jolly Ranchers, and Twizzlers for sale in the candy aisle, you wouldn’t think anything about it. But if you wandered into a shop in England and saw those same drinks and candies, then there’s a good chance that retailer is about to get a visit from the Trading Standards office. Trading Standards, the local authorities that enforce consumer-protection regulations, have seized thousands of dollars worth of common American candies...