New Zealand’s swift action is similar to steps taken in the UK and Australia in the 1990s, when two mass shootings inspired changes to gun laws.
In the UK, after the 1996 Dunblane school massacre in which 16 children and one teacher were killed, the government banned the private ownership of most handguns.
Dunblane remains the deadliest mass shooting in British history and there have been no school shootings since.
In the same year, the Port Arthur massacre in Australia, in which 35 people were killed, led to the National Firearms Agreement and the introduction of tight controls on semi-automatic and fully automatic weapons.
In the seven years following the agreement, Australia’s firearm homicide rate dropped by almost 42 per cent and the firearm suicide rate fell by 57 per cent.
It's not hard to see why some people are fed up with America's gun laws.