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I know I've been asking a lot of questions lately about tenses. But please bear with me here.
NASA scientists have decided to delay the space shuttle's launch in order to determine whether recently repaired parts will cause damage if they break off in orbit.
So for the above example, I know will is correctly used. But I don't understand why there needs to be Present Perfect. Since this happened in the past shouldn't there be Simple Past?
Is this because NASA's decision is continuing into the present?