It may also be a Southern thing though.
So, in the craigslist example, many American people are afraid because there is overwhelming evidence that craigslist robberies A) really do happen with some significant frequency and B) meeting at a public place is a simple, low-effort way of mitigating that risk. I can understand people living in lower crime areas not worrying about craigslist robberies (though I would take the precautions anywhere because it is so simple).
However, in general, I would agree with you that Americans eat up FUD. You can see it in our DHS/TSA, the Patriot Act, collective disinterest in the Snowden leaks, and general anti-Muslim sentiments.
[0]: http://wlfi.com/2015/08/18/man-robbed-at-gunpoint-while-meet...
[1]: http://wlfi.com/2015/08/18/lafayette-adds-monitored-exchange...
Also, for some reason, whenever something bad happens, the US seems to respond with bigger countermeasures, more stringent laws and heftier punishments. Europeans are amazed when they read that children are sometimes threatened with tens of years of jailtime for relatively small incidents.
The reason why you don't have to be afraid when dealing with Craigslist in europe is that guns are rare, as is gun violence.
But I'm sure some will just buy another gun to feel safer. Isn't that the standard argument after a serial shooting? The first victim should have had a gun, then this wouldn't have happened... that's as perverse as it gets!
Is there evidence, or media reporting well beyond the actual rate of occurrence?
There's no relative scarcity of ignorant and authoritarian schoolteachers, but consequences are likely to be confined to school, not involve law enforcement, and parents and pupils are more likely to knuckle down rather than fight or go to the press.
So, taking "such behaviour" much more broadly than this specific incident (and of course granting that Europe is a big and diverse place) - if a kid is found hacking school networks, or distributing a satirical magazine, or bringing possibly inappropriate or dangerous items to school, the schools are just as likely to crack down (even if it infringes the pupil's legal rights) but the matter is likely to end there without ruining the pupil's education. Or making the school administration change its behaviour.
Personally I think the situation as I have described it is favourable. Ideally schools wouldn't be administered by petty tyrants, but as long as everyone finishes their education with a blank slate it's fine. Keeping the police away from schools as much as possible would be a good start.
I see a few possible causes:
– 9/11 was a much bigger attack than anything that happened on European soil
– there is a more influential lobby for militarisation/criminalisation in the US
– Americans are more fearful
– America is more democratic. As such, the unfounded fears of parts of the population (on both sides of the Atlantic) are less likely to be buffered by the more rational thinking of experts
and, my favourite:
– Americans love excitement and violence & it is amplified by the media. Nothing better than a bomb scare on FOX.