Wow ... the ECHELON agreement was in 1948 and still going, amazing ... i'm guessing that all their computers and interception devices are either up in space (satellites and so on) or underground (which would be where the phone taps, internet monitor and SMS interceptions will occur)
It would be way to risky to put it all above ground if such agreement was confidential, atleast that is my opinion ... (seeing as i'm only young i am almost always wrong
By the way, your ISP will definately report you if your doing something extremely illegal, by having a contract with them or using their services, you give them permission to, this happens on almost every single website and ISP
Take a look at googles terms and conditions if you use their search engines, it says:
We (google of course) conclude that we are required by law or have a good faith belief that access, preservation or disclosure of such information is reasonably necessary to protect the rights, property or safety of Google, its users or the public.