Where is The Surprise?
One of these days there just might be a surprise, but until then I will assume that security services are there to mine data of many types to interdict criminals and their activities.
For me the only thing that come close to a surprise is that the US is so very poor at vetting, clearing and managing staff with the result that junior, disaffected elements, (I suspect life failures might be a fair term) run off so easily with the keys to the kingdom. Are they simply stupid or do they assume that getting what they ask for makes them immune to threats from staff whose pay grade should, but clearly does not, limit them to shoe cleaning, door opening and clearing the day's rubbish. This is surely the real story, US Collects buck loads of data, but cannot manage its use, in fact are they able to use anything they collect?