Guns aren't designed to kill people, they are designed to protect people...big difference. They are also designed for hunting, which provides food for people. Not to mention the whole competitive sport shooting scene. It is a multi-purpose tool that in the wrong hands or in the hands of someone with the wrong training has the potential to be harmful. Nuclear/biological/chemical weapons, on the other hand, were designed for the sole purpose of killing on a large scale...these are the weapons that should be banned and targeted by lawmakers/law enforcement. Crazy people don't need guns to kill a large amount of people, just look at the Boston, Oklahoma City, and WTC attacks (any of them). Besides, if a criminal wants to get a gun, they are more than likely not going to go through legal channels...thus, the majority of gun laws tend to only affect law abiding gun owners.