History Detectives

Season 6, Episode 3

Season 6 Episode 3 | 54m 8s

Is this scrap of fabric evidence of a secret wartime attack on the United States' mainland? Why did some New Yorkers plan a high society circus during the Great Depression? Could a box found in a dumpster hold information about the founding of a top-secret Presidential retreat?

Aired: 07/13/08

Rating: TV-PG

Video has closed captioning.

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