NOVA News Minutes

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Running time 1 minute 33 seconds

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DNA typing has made it possible to identify more than half the people lost at the World Trade Center, and new typing techniques offer the hope that more victims may still be identified.

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NOVA News Minutes thumbnail

Running time 1 minute 33 seconds

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Leslie Robertson, the World Trade Center's structural engineer, receives a prize for innovation in construction technology.

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Running time 1 minute 23 seconds

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Did damaged fire protection contribute to the World Trade Center's collapse?

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