Many worldwide governments are trying to pass a new law to allow them to watch emails, texts and calls. First of all let me point something out any government with the proper resources could do this without you knowing anyway and just makes this law pointless because if they are going to watch you then they will find a way.
Months ago governments wanted to pass two laws that were identical to CISPA, these laws were called PIPA and SOPA. In a practical world these laws would never pass because it breaches human rights, anyone has the right to keep things private and this includes emails, texts and calls.
If it becomes a legal requirement to hand out access to this information then the human right laws are pointless. I doubt CISPA would pass and if it does we might as well hand over everything to our local governments because from this point it means you have no privacy or freedom.
Personally I dont think local government would deal with this. If it did get through I reckon it would be more national. I may be wrong, but we all know that local governments only deal with normal stuff. National have more clout and connections to other depts. I would assume that national would just leave local to deal with normal day to day stuff.
Also, like you say, if they are going to do it, they will do, and more than likely do already to a certain extent, for anti terrorism etc. But, doing it to monitor every single thing, I cant see it. There would be a lot of people upset about this. It takes a brave or ( in our case in UK ) a stupid government to even think about doing this.
I fully agree with you buddy, there would be riots if it comes into force.