IGun

Guns should have electronic chip, which would allow their use only when majority of people around approve it. Think IGun. Now if a terrorist kills a guard and gets his gun then he wont be able to use it on hostages, unless they themselves allow his gun-use by pressing "confirm" on their smartphone.

That way lone gunman and a-few-terrorists scenarios will get eliminated, but when a large group of people comes out to protest, totalitarian government wont be able to stop them from exercising their democratic rights.

Same way people would be able to hire a sheriff and give him right to police some locality, without fearing he will use the gun against to subvert democratic procedures.

What do you think?

>>1,2
Penises would be equipped with iPenisController to prevent non-crowd approved rape.
Pitbulls would wear iBiteGuard for everyone to confirm they want to maul that kid.
Vaginas will be controled with iAbortGuard that alerts police in case of unscantioned abortion attempts.
Brains will be equipped with iThoughtCorrect chip that alerts police if subject is having criminal intents.
Its gonna be an utopia.