Guest host Tracy Smith In our cover story David Pogue explores the mysteries and beauty of lightning Also Ben Mankiewicz sits down with Oscar-winning actor F Murray Abraham David Martin examines the alarming propensity for violent death among critics of Vladimir Putin Dr Jonathan LaPook profiles violin virtuoso Augustin Hadelich Faith Salie reports on the science of sweat and Luke Burbank talks with chefs who cook with cannabis See Privacy Policy at https art com privacy and California Privacy Notice at https art com privacy do-not-sell-my-info [... more]