This is not about efficiency. This is about trust.
We do not trust these enormous organizations we call governments with unlimited power, because they then become a threat to society itself. The 20th century is evidence of the threat of centralized power, particularly over the control of information and communication.
So when a government claims the power to read all conversations in order to prevent X from happening, X is irrelevant. I don't even care to hear their justification. They cannot be given this power. It's an existential threat to a free society.
We do not trust these enormous organizations we call governments with unlimited power, because they then become a threat to society itself. The 20th century is evidence of the threat of centralized power, particularly over the control of information and communication.
So when a government claims the power to read all conversations in order to prevent X from happening, X is irrelevant. I don't even care to hear their justification. They cannot be given this power. It's an existential threat to a free society.