Tough. The logical consequence of “we can’t show you the proof” is “okay, I don’t believe that you have any”. After all, you would not believe my assertions about fantastical achievements without evidence, and the consequences of that hypothetical are much lower than the state saying it should be able to kill people in the name of “counter terrorism”.
More succinctly; “it would compromise means and methods” is a phenomenal way to cover up shaky or non-existent evidence.
More succinctly; “it would compromise means and methods” is a phenomenal way to cover up shaky or non-existent evidence.