Everyone should kill under the right circumstances. The only problem is the amount of times the police kill when it isn't reasonable and get away with it. The general public might debate which of those times is reasonable but the law judging the police usually comes to the same conclusion that they're innocent.
Are you ready for the fire? We are firemen. WE ARE FIREMEN! The heat doesn’t bother us. We live in the heat. We train in the heat. It tells us that we’re ready, we’re at home, we’re where we’re supposed to be. Flames don’t intimidate us. What do we do? We control the flame. We control them. We move the flames where we want to. And then we extinguish them.
Impersonation is treason.