By definition hobos are people who travel from town to town taking odd jobs as they go. But some towns are friendlier than others, and hobos developed a system of symbols they left one another to know what to expect from a town.

Selects: Operation Mincemeat: How A Corpse Fooled the Nazis
45:18

The Magnificent Golden Gate Bridge
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Short Stuff: Magic 8 Ball
12:42