This week "Sunday Morning," hosted by Jane Pauley, features Nancy Giles' report on how a chef who once worked at the world's greatest restaurant is on a mission to remake the menus of school cafeterias. Plus: Tracy Smith talks with Bill Hader, star of the HBO series "Barry"; Anthony Mason visits an exhibit of iconic rock instruments at New York's Metropolitan Museum of Art; David Pogue looks at Rod Serling's classic "Twilight Zone" series, now returning under Jordan Peele; Faith Salie checks out the fascinating world of biomimicry; and Liz Palmer visits the Metropol Hotel in Moscow with novelist Amor Towles, author of the bestseller "A Gentleman in Moscow."