08/19/2013 11:36 am ET Updated Oct 19, 2013

Industries Making The Most Money Off Of Doomsday Preppers

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As many as 3.7 million Americans are classified as preppers or survivalists. Being a "doomsday prepper" is not easy -- or cheap. These people prepare for different disasters for different reasons. Most think that natural, financial or other disasters will destroy our infrastructure or tear society apart.

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