You may be surprised to learn those ubiquitous ratings, from G to NC-17, put on movies in America are actually handed down by anonymous employees of a secretive organization that serves as a lobbying firm for Hollywood's six biggest studios.

Selects: Did Mallory Make it to the Top of Everest First?
52:48

The Hindenburg Disaster
50:02

Short Stuff: Did Tippi Hedron start the Vietnamese manicure industry?
12:58