Because guns are better for self defense. That is why police need guns. Their task is to investigate crimes and apprehend suspects. It's not to shoot people.

Because guns are better for self defense. That is why police need guns. Their task is to investigate crimes and apprehend suspects. It's not to shoot people. What does it matter how many fewer ways there are to kill a lot of people with a can of gasoline? A mass murderer only needs one way.