So explain why Switzerland isn't a violent crime war zone despite all their guns.
Because their guns are actually regulated.
They don't let crazy people own them.
Living with guns the Swiss way
Switzerland has one of the highest rates of gun ownership in the world, but little gun-related street crime - so some opponents of gun control hail it as a place where firearms play a positive role in society. However, Swiss gun culture is unique, and guns are more tightly regulated than many assume.
In 2006, the champion Swiss skier Corrinne Rey-Bellet and her brother were murdered by Corinne's estranged husband, who shot them with his old militia rifle before killing himself.
Since that incident, gun laws concerning army weapons have tightened. Although it is still possible for a former soldier to buy his firearm after he finishes military service, he must provide a justification for keeping the weapon and apply for a permit.
When I meet Mathias, a PhD student and serving officer, at his apartment in a snowy suburb of Zurich, I realise the rules have got stricter than I imagined. Mathias keeps his army pistol in the guest room of his home, in a desk drawer hidden under the printer paper. It is a condition of the interview that I don't give his surname or hint at his address.