You are assuming that the NSA has good motives. I call that naive. In addition, we have the "Petro-Fascist" establishment -that was tied to the US starting an unnecessary ( actually involving fraud) war that cost 10's of thousands of lives and billions, if not trillions, of dollars -and leaving behind a btoken nation on the edge of civil war.
We had GM crushing EV-1's in the desert, away from protestors ( see 'Who Killed The Electric Car?"). We also can witness the US supporting some of the worst war criminals on earth in Syria - partly triggered by alliances with Sunni Oil states. It is well that Rossi is dismissed as a fraud for the present. This may save him and his technology.