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Duration: 1 min The world's increasing population and development of agricultural land are putting pressure on the Earth's limited freshwater supplies. Find out what's at stake and how you can help. MORE |
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Clair talks about growing up as a boy.
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Civil war reenactors take great pride in authenticity - right down to their death throes.
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Bin Laden's compound was designed to be as hidden as possible.
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Some things aren't rocket science. This is.
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