In this article it says that  we need a way for us to protect against people who are trying to kill other people. Also it says that if everyone owned a gun that would cut down a lot on crime because people would't attack someone else who has a gun and could kill them. One last thing is that letting people have guns could protect from foreign people who just want to come here and kill, so it could help cut down, weaken, and or stop terrorism. They just need to check people out a little bit more when they get guns.