In a country this size they could never remove all the guns. If you make it illegal for law abiding citizens to have guns then the criminals will be the only ones with access to them. We have something on the order of 1 policeman for every 10,000 people so we cannot expect the police to be able to protect us all the time. It is up to us to protect ourselves as much as possible. If guns were somehow magically removed from the world then people would use bows and arrows and knives to commit crimes and there would be no reduction of crime. Crime and murder has been around far longer than gun powder. Concentrating on one tool used in crimes is not the answer for fighting crime, it is just easier for the wimps than dealing with the causes of crime.