You mean, the mechanism that allows one to ask government for something, and for the government to deny that information for whatever reason?
Okay, show me some example. US Air Force droning a wedding, where can I find information about that? Drone video recordings, perpetrators' names etc? Let me guess - that's "national security" and can't be public. And that's somehow different from how it works in China (if China was droning random civilians that is).