Really? News to me. If NSA has had this secret ability, and if it is indeed a secret, how is it that some random person knows all about it and now feels perfect

Really? News to me. If NSA has had this secret ability, and if it is indeed a secret, how is it that some random person knows all about it and now feels perfectly safe revealing it on a public web site? Changing data in real time on private databases goes way beyond traffic monitoring & intelligence-gathering.