Those psychopaths already have the capability to terrorize entire cities. And they don't do it. Everyone you pass on the street every day could kill you easil

Those psychopaths already have the capability to terrorize entire cities. And they don't do it. Everyone you pass on the street every day could kill you easily before anyone could do anything to stop them. But it's not something you have to worry about. Because people mostly aren't willing to do harm to others. And for no other reason. Police and most other measures only have effect afterwards, and deterrence doesn't work. The moral sense of those around you is what protects you, and always has.