Here is an interesting story of how the Allies hid maps, money, and escape tools in board games kits distributed to Allied POWs during WWII. An estimated 10000 POWs used the contents to escape Nazi camps.
http://abcnews.go.com/Technology/monopolys-hidden-maps-wwii-pows-escape/story?id=8605905

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Posted by: ShondaTonyr at November 21, 2011 03:58 AM