Increased stress levels in USA:
https://www.cnn.com/2022/06/28/us/subway-worker-mayo-dispute-killing/index.html
I've been in some Subway shops that have 2 doors. This is a problem. There should only be one hardened door guarded by armed security. The trouble with these public places is that they let in just anyone, how can that be safe? Also, I don't have any inside knowledge but I've never heard of a campaign to arm and train Subway employees on how to properly use a firearm, obviously irresponsible of them.
From what I've read online, always a dubious source, there are only 390 million guns in the US, not hardly enough to maintain security. This is an odd situation though, given that the US has such a high incarceration rate compared to the rest of the world. You'd think a lot of the dangerous people would be inside by now, based on statistics alone. There must be an awful lot more bad guys in the US than previously thought so you need to arm a LOT more "good" guys and train them of course. This is a tough situation, lots of variables. The important thing is that the Supreme Court must never tamper with pervious decisions or amendments, that's always an iffy proposition, never know where that will lead.