Reducing Gun Death

It seems to me that the policy changes to reduce gun deaths in this country are easy to understand. And quite possibly impossible to implement. The reason I say this is no other first world country has anywhere as many gun deaths as we do. By a factor of twenty. How to do it? You do as these first world countries do. This is primarily done through what I would call 'policy friction'. That is, you make it so annoying to go through the process that most people won't do it. You could, say, make every gun owner go through a three day training course, for each weapon, repeatable every three years. Make the fee for the course the same as the value of the weapon.

https://mobile.nytimes.com/2017/11/07/world/americas/mass-shootings-us-international.html?referer=http%3A%2F%2Fm.facebook.com