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US military site Area 51 is the subject of wild speculation and conspiracy theories. Now insiders reveal what really goes on behind closed doors. (Verleiher-Text)
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Photo © National Geographic Channel
![Area 51: Die Geheimakten der CIA - Filmfotos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/161/820/161820800_743193.jpg)
US military site Area 51 is the subject of wild speculation and conspiracy theories. Now insiders reveal what really goes on behind closed doors. (Verleiher-Text)
Photo © National Geographic Channel