Chewing gum may be a $19 billion industry, but it's not a universally accepted practice. Author Jennifer Mathews examines the cultural history of bubble gum, which stretches from the mouths of prostitutes to the pockets of G.I.s.
Chewing gum goes back a long way, nearly 11,000 years. Host Liane Hansen speaks with writer Jennifer Mathews about the history of the sticky substance. Mathews is the author of Chicle: The Chewing Gum of the Americas, From the Ancient Maya to William Wrigley.