Coming up on today's show:
- Many people are outraged that zookeepers at the Cincinnati Zoo shot a gorilla after a toddler fell into its enclosure. Hear what conversations have been sparked at other zoos about safety, responsibility, and the decision to shoot an animal.
- Our #30Issues series continues this week, on infrastructure. Hear a brief political history of infrastructure, with Brian Pallasch from the American Society of Civil Engineers.
- Theoretical physicist Brian Greene and oceanographer Sylvia Earle preview this year’s World Science Festival.
- Retired NYPD officer Stevie Stryker talks about his life as an undercover cop, with NY Daily News' Rocco Parascandola.
- Yiannis Boutaris, the mayor of the Greek city of Thessaloniki, discusses Greece's role in accepting refugees from ailing countries.