Government is a big thingy and different departments have different interests. If Treasury wants to cut something, CIA may think otherwise. Millitary brass may confront president with "we strongly believe" or "based on our estimates" bull in order to make him act. Historians and radio talk hosts also have their own interests.
Unless we have solid facts, we can only speculate. For example, folks at USS Liberty were expecting handsome monetary compensation from Israel via US courts. They worked with lawyers. Their interviews and testemonies were accordingly one sided. And they got the settlement they accepted.
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