This is fundamentally different from modern technology where they can have a computer listen to every single call, pick out whatever keywords they're looking for, and flag it for later review. Technology now makes it possible for them to truly listen to everyone at once. This is why end-to-end encryption is necessary for everyone.
Politics is not going to solve this problem. A lot of what America's police and intelligence agencies do is already illegal. They don't care. They're going to do anything they can with the technology.