Australia, Canada, New Zealand, United Kingdom, United States. These are the Five Eyes countries - an intelligence cooperation arrangement. The intelligence agencies of each country have been caught using each others resources to get around laws preventing them from spying on their own people, and they also seem to pursue the political goals of the intelligence agencies through each other's country's too. Eerie how much social pressure is coming to bare even in Canada so far across the globe. Here politicians have come under seemingly great pressure if they didn't immediately head to the nearest Mosque for a photo-op (and dress up as a Muslim if you are a woman, which some have seen as solidarity, others as self-serving and patronising, and by others as insulting to genuine faith). Peeps, we are in crazy land. Fifty human beings are dead and the top priority seems to be who can make the biggest displays of compassion (with other people's money if possible).
As a country with almost no gun violence, New Zealand is the place least in need of more gun laws, but this is an opportunity to leverage the US politicians and shame them into passing anti-gun laws, a goal the shooter specifically mentioned in his manifesto. The problem isn't the guns, the problem is ... well, it's one of the problems the IPCC pointed towards as a consequence of global warming - populations with different cultures and values will move in large numbers and when they come into contact with very different cultures there will be violence if there is no integration. Banning the guns won't stop the underlying problem, and it also won't stop the guns. Yugoslavia tried to disarm it's population before it fractured on ethnic/religious lines. Guns were smuggled in, in huge quantities, and by foreign powers too. There are so many old war guns continually washing around the world. The solution is integration, but the current fashion is to accentuate people's differences - and how that makes them oppressed and justified in their rage.