DOE Targets Unsecured Uranium
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Nuclear Waste Clean-Up Plans Fuel Debate
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U.S. Eyes Security Reforms for Nuclear Sites
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Energy Department Seeks to Avert Nuclear Plant Break-Ins
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Report Questions Nation's Nuclear Plant Security
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Gravity Probe B to Test Einstein's Theory
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NASA Set to Test Einstein's Relativity Theory
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Missile-Shield Plan Goes Ahead
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Protecting the Nation's Nuclear Materials, Part 3
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Protecting the Nation's Nuclear Materials
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NASA to Test 'Scramjet' Aircraft
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Critics Doubt NASA's Hubble Plans
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