Taken to its logical conclusion, the FBI is arguing that it should be able to read all internet traffic in the US, to make sure nobody is breaking the law. That IS what they are saying. There is no need to read between lines here. So then, we just invent a Great Firewall of USA that works like the internet in Communist China? Will we then pay for rooms full of FBI agents who will monitor our email, phone, and browser traffic for signs of law breaking?
I don't know, but this may be the most important question of our generation. How far do we bend over to allow law enforcement to protect us from ourselves? I have already heard law enforcement agencies arguing for more cameras everywhere, license plate readers on every signal light, random DUI stops, random body searches, forced interrogations with lie detection technology, background checks for job applicants, license seekers, renters, real estate purchases, car purchases, ...
Wait, we have most of that already. We're basically already screwed. We're only arguing how much worse we're going to be screwed in 5 years...