The right to bear arms

   We all know that Amercian people could buy guns and use them when they feel they are in dangers. The aim of this law is to keep the safe of citizens. And the people who buy gun from gun shops must register and be given a code. Is that  really safety? I don't think so. I could read the news ,frequently, about some guy who taked his arm to school or college shot several students. People take arm for keep safe but it also can be the arm for attack.