Don inspects a crossword puzzle with hidden clues that could have jeopardized D-Day; one of the most important maps in world history, which was nearly lost forever; and an odd-looking traffic signal that became a cultural symbol for communist East Germany. |
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Title: | Crossword Code, Ampelmann, Brushy Bill | |
Air Date: | June 19, 2015 | |
Runtime: | 60 min | |
Alien : Contains spoilers. Click to show. oops!