When invasive parakeets began to spread in New York City in the 1970s, the government decided it needed to kill them all. Today: The offbeat panic about wild parrots, and a history of anxieties about population growth.

Sneak Preview: The Other Side of Change by Maya Shankar
41:49

John Birch vs. the PTA
33:08

Part 2: Long Jump, Tall Tale
45:02