This week we're celebrating the Fourth of July and the start of high summer. Gourmet magazine's John Willoughby talks smoke roasting, a much-ignored technique worthy of revival for its easy and succulent results. John's latest book, Grill It!: Recipes, Techniques, Tools, co-authored with fellow grilling guru Chris Schlesinger, is hot off the press. The Sterns feast on only-in-America fried clams and onion rings at Champlin's Seafood Deck in Narragansett, Rhode Island. Sally Schneider, author of The Improvisational Cook, has ideas for summer coleslaw. Gary Nabhan, co-author of Renewing America's Food Traditions, looks at America's endangered foods, and David Rosengarten, creator of The Rosengarten Report newsletter, talks burger bliss.