History is riddled with oddly-named diseases -- rickets, scurvy, brain fever and more. But where do these names come from? In the second part of this special two-part series, Ben, Noel and Max dive into the etymology of these strange and dangerous maladies.

CLASSIC: When West Virginia Begged the USSR for Foreign Aid
29:52

Knitting as Espionage, Part Two: Legendary Spies -- and One Traitor
33:37

Knitting as Espionage, Part One: Secrets in the Stitch
33:37