It may sound trite, but it's a really simple equation. There will be fewer people shot if there are fewer firearms readily available. Just how many mothers, fathers, sons, daughters, brothers, or sisters must be told that a family member will not be coming home because a lunatic has put a bullet in them before the USA will actually do something about it?
Ten years ago, when I, along with colleagues from many countries around the world launched the Control Arms campaign, we had a simple message for governments: the arms trade is out of control and ordinary people around the world are suffering at the rate of one death every minute, with millions more forced from their homes, suffering abuse and impoverishment.
Much has already been written about the tragic events of 14 December in Newtown, Connecticut. It's hard to think of anything much worse than twenty small children being gunned down just before Christmas, for doing nothing worse than attending school. But what is the global perspective on this awful event?