When it's Alan Turing and stopping the Germans from realising an Enigma message has been read by the global surveillance apparatus of the Allies and been broken, by sending out a Catalina to look for a U-Boat at just the right time, that's great and an uplifting exemplar of the way things should be.

When it's an email that's been read by the NSA surveilling Internet data, that is then used to tell the DEA to go and stop a car at just the right time to catch a cartel drug courier and murderer, that's not?