US small arms per 100 persons: 120
Portugal small arms per 100 persons: 20

US murder rate: 5.9 per 100,000
Portugal murder rate: 0.8 per 100,000

US mental health care system: for-profit, limited by insurance carriers
Portugal mental health care system: Single-payer public

Smart kid in Portugal gets scholarship to come to US, lives here 20 years, has mental breakdown, kills a professor and shoots up a university.

I don’t think the problem is immigration from Portugal. The problem is here.

@Cdespinosa if that’s 120 guns for 100 people is right, there is a population that’s hoarding them.
@sanguish it is, and there is
@Cdespinosa I’d be surprised if even half the population has one gun.

@sanguish Well, prepare to be surprised then. A little MORE than half the US has AT LEAST one, meaning that that half has on average more like 2.5 each.

Take these numbers as rough estimates, though, because a lot depends on who's counting and how. With no national registry, and no complete state registries, no one has complete data. I would personally consider these estimates probably on the low side, because they're based on AVAILABLE information, and we know that there's lot unreported.