50th anniversary

A conversation with Carl Djerassi, a father of the pill

The chemist talks with Need to Know about the early days of the pill, population decline and alternate realities.

- Learn More Providing Support for pbs.org
- - Please try again a little later.

Need to Know is a production of Creative News Group (CNG) in association with WNET. Marc Rosenwasser is Executive Producer. Need to Know is made possible by Bernard and Irene Schwartz, Mutual of America, Citi Foundation, John D. and Catherine T. MacArthur Foundation, Miriam and Ira D. Wallach Foundation, Margaret A. Cargill Foundation, The Corporation for Public Broadcasting and PBS.

50th anniversary

A conversation with Carl Djerassi, a father of the pill

The dirty dozen and clean 15 of produce

A brief history of the birth control pill

How much radiation is too much? A handy guide

Interactive: Who would you kill? Test your moral intuitions

Juicing