https://de.wikipedia.org/wiki/Liste_von_Sprengstoffanschl%C3...
https://de.wikipedia.org/wiki/Liste_von_Sprengstoffanschl%C3...
[1] https://en.wikipedia.org/wiki/Attacks_on_the_London_Undergro... [2] https://www.citylab.com/transportation/2012/09/throwing-it-a...
I believe one or both of these bombs explains why lockers were removed in NYC (and this may have led to other places removing them too).
[0] https://observer.com/2016/01/why-hasnt-washington-explained-...
The UK does reasonably well at "hidden" security features. Another type are "decorative" features -- like the word "Arsenal" outside the football club, or the ponds in front of the Scottish Parliament building -- which just happen to be in the right place and of the right strength to prevent vehicles crashing through.
Alas I cannot answer your question really, if regular old “drop a bomb in me and nobody will notice” bins are common in your locale it seems safe to assume that public lockers have not been removed due to safety concerns. If I had to guess I’d say they were not utilised/profitable.
The "efficient market in lockers" theory is not a null hypothesis. ITT, we haven't eliminated the "because homeless people use them" explanation for the widespread lack of public lockers.
Terrorists tend to strike a major targets, so you’ll definitely find a difference in security measure between downtown Chicago and say Peoria.