First-order strategy (do something that works as long as the other side hasn't also thought of it) only works until the other side thinks of it. My guess is tha

First-order strategy (do something that works as long as the other side hasn't also thought of it) only works until the other side thinks of it. My guess is that the intelligence complex (CIA +) thought of this around 1995, and the domestic law enforcement complex (FBI +) around 2005.