Terry Gross

After wrapping up his book about the potential therapeutic benefits of psychedelic drugs, author Michael Pollan turned his attention to a drug that's hidden "in plain sight" in many people's lives: caffeine.

One of Hollywood's biggest stars of the 1950s and '60s, the Spartacus and Lust for Life actor went on to run his own production company. Douglas died Feb. 5. Originally broadcast in 1988.

New Yorker writer Adam Entous says the U.S. could face further retaliation from Iran for the death of Qassem Soleimani: "If you look at their history, they take a long time before they strike back."