Why don't you go to court to file a suit against NASA?
I have used that same argument several times. Maybe there are some aspiring attention-seekers who have seriously considered it -- until they read the law or consulted an attorney. The penalty for frivolous litigation or malicious prosecution in federal court, even if you believe you're right, can involve serious financial, (double or triple the defendant's expenses + fines), and even criminal charges if it is determined that the claim is groundless and fundamentally ridiculous. Bottom line: there is no lawyer who would take the case. He/she could receive a fine in the tens of thousands of dollars, and sanctions against the attorney and/or that attorney's law firm.
That same argument could be made regarding 9-11, only this time it would be a mass murder charge in addition to criminal conspiracy. The costs would be enormous. The complainant would have to get the district attorney to agree to press charges. Well, that's not very likely.
Wunder-Blunder hired a lawyer to threaten me with lawsuit if I didn't remove 27 of my YT videos. I refused. I never heard from him again. An attorney told me that yes, there are lawyers who will intimidate people this way for a client, even if they are just bluffing. But getting one to go to court to prosecute such frivolous complaints is quite another story. Still, I would love to see Wunder-Blunder go into a US court, unrepresented, and tutor a judge on copyright law.
This all raises another question, though. If a lawsuit seems frivolous from the start, does the court attempt to assess the plaintiff's ability to pay fines and other damages to the defendant if his complaint is shown to be groundless and malicious? If so, would the court be likely to preemptively dismiss the case primarily on the grounds that the defendant could be financially ruined by a frivolous litigation?