Two cable companies have a monopoly. The feds allow two so we won’t think there IS a monopoly. Cable TV is “two way”.
The CIA and FBI and NSA, etc., have had small hand held cameras for decades. But they had to be concealed. So, everyone gets a cell phone with built in cameras that the government can turn on anytime they want. Even local cops.
WIFI? “They” can drive by your house and get on your computer.
It’s gotten to the point that no government, no matter how small, can be trusted. I’m too old to worry about it. But, it just might be that the “beast” the elites created may one day turn on its creator.
Wifi has encryption on by default. There's almost no doubt the NSA could brute force WPA2 if they put some portion of their computers on it. And not a drive-by, they would do it from 10 miles away. But not your network, you are too low value of a target. As for the local cops? I doubt it.