Let's be realistic here, they've been monitoring our internet usage for years. Implanting trackers and bugging our homes is a totally different topic altogether.
Guess what, that's next. With the advent of the Internet of Things, it will be possible to bug our homes and track us through encryption backdoors.
The difference between our respective thinking is that you are willing to trust the government with power and I don't. The Founding Fathers of the United States designed the Constitution with the mindset that the government couldn't be trusted. The Bill of Rights was written to ensure that certain rights were enshrined in writing in order to protect the populace from the government.
The government simply cannot be expected to police itself. If it has power, it will use it to the maximum extent possible. There need to be strict boundaries put in place through laws and a well-informed populace. If the government wants added powers, it's up to the government make a case for it.