tip of the tongue

Presidentiality: The science behind Rick Perry’s brain freeze

Rick Perry suffered from a potentially campaign-wrecking lapse of memory at the Republican debate this week. Presidentiality looks at the science behind Perry’s embarrassing brain melt.

1 Comment

- 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.

tip of the tongue

Presidentiality: The science behind Rick Perry’s brain freeze

A brief history of the birth control pill

The dirty dozen and clean 15 of produce

McDonald v. Chicago

How much radiation is too much? A handy guide

The tyranny of happiness