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“I did not. No, sir. I did not. I did not. Certainly four…” — Up First from NPR at 43:52

Up First from NPR Challenger at 40: Lessons from a tragedy

“I did not. No, sir. I did not. I did not. Certainly four of the key people who made the decision about the launch were not aware of the history that we've been unfolding here before the commission.”

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