J Edgar Hoover
Back in the day, Hoover would send FBI agents out to look into the lives of his political critics to find any dirt they could hover up. He then used this to make sure that they voted in the correct way on any FBI budgets being considered.
How much you want to bet that the NSA isn't doing this right now. There have been a lot of government employees (Weiner, Petraeus) that have recently been outed using their social Internet networking. I wonder if our own Senator Ron Wyden (R-OR) isn't next given his comments today on the NSA asking the representatives to vote to not fund it.
It also isn't only the NSA that is hovering up records. I just got a special US Census form to fill out asking many personal questions about race and income. It's the law, don't complete it and they come after you.
Perhaps I should be careful, being in the USA and sending this to the UK, but I don't really give a damn right now.