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04-07-2012, 03:13 AM
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Obama Embraces National Security as Campaign Issue
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06-29-2012, 08:26 PM
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What's a 'leap second' worth?
 To compensate for the gradual slowing of the Earth's rotation, horologists will add an extra second to Co-ordinated Universal Time on June 30. We calculate what the extra time might be worth to the world's economies. More...
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