Proposing legislation against the possession of a thing will never work and is a complete waste of time. Murder is already against the law and carries the worst punishment that can be carried out by the justice system. If the murderer is already ignoring that law then they will carry out their act by any means necessary, unlawful or not. How is making certain drugs illegal working out? If citizens are less armed than the government, tyranny is inevitable. There is no legitimate reason to disarm law abiding citizens unless you want them subjugated. People will own dangerous things in a free society. Take responsibility for your own safety and quit worrying about what everyone around you has. It takes courage to live in a free society. If you think the government should control people's individual freedoms, your Utopia awaits you in North Korea.