Jane Pauley hosts our annual "Food Issue," devoted to all things epicurean. Among our delicious features: David Pogue visits a laboratory that helps launch new food trends; Lee Cowan samples Texas BBQ with a foreign flavor; Tracy Smith visits the Chicago sandwich shop that inspired "The Bear"; Luke Burbank explores the popularity of tinned fish; Faith Salie talks with Pinky Cole, founder of the Slutty Vegan fast food chain; Kelefa Sanneh gets in the kitchen with New York Times food columnist Melissa Clark; and Serena Altschul looks at some tools of the culinary trade.

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