Brain Food Dude #27

The Brain Food Dude podcast #27 is out now. Listen here, or subscribe on itunes.

This week's episode features clips about the following:

Secrets of the FBI on NPR.
Christopher Columbus and ecology on Fresh Air.
Passing on the family business on Freakonomics Radio.
History of the air conditioner on All Things Considered.
Mayan culture and the truth about 2012 on To the Best of Our Knowledge.