Jane Pauley hosts our annual "Food Issue." In our cover story, Lee Cowan looks at the rise in food insecurity in the U.S. Plus: Martha Teichner meets a bagel business consultant; Rita Braver looks at artistic soup tureens; Seth Doane learns the secrets of making tortellini; Jim Axelrod interviews chef Vikas Khanna, who has built a coalition to feed millions in India; Mark Whitaker discusses Black contributions to American cuisine with chef Marcus Samuelsson; Jonathan Vigliotti meets a heirloom bean entrepreneur; Nancy Giles asks why Americans are so sweet on snacks; Luke Burbank visits America’s oldest Chinese restaurant (in Butte, Montana); Tracy Smith interviews Kate Hudson, actress and World Food Programme ambassador; Conor Knighton visits a mint farm; Kelefa Sanneh discovers new variations in rainbow cookies; and Mo Rocca drinks a toast to applejack, a spirit that helped fortify the American Revolution.