This makes the assumption that all policies have a reasonable justification, so that the existence of a real problem can be inferred by the implementation of a policy which would only make sense if (1) there was a real problem, and (2) the policy was an effective mitigation.
I would suggest that this assumption is both false and dangerous, in that it makes one trivially manipulable by anyone in a position to set policy.
I too kind of roll my eyes at the bag policy but it's at least an acknowledgement that something needs to be done about the problem - more than we've gotten from our politicians in the past two decades.
I’m in the US and this story feels extremely foreign to me. Even hearing a rumor about a gun threat at my kids’ school or any of my friends’ kids’ schools would be a topic of discussion for the next year with parent-teacher meetings, the school communicating with parents to shed light on what happened, action plans, and so on. Fortunately nothing like that has happened, but this is the level of communication that happens for even rumored threats.
The US is a huge place, though. Some times I don’t think outsiders understand how big and diverse this country is.
This was in a wealthy suburb where people like that have to make up imaginary threats in order to feel something, and what better population to fret about than the kids.
The cops' reluctance to investigate probably had something to do with the fact that some of the gang members were white student athletes with very wealthy families.