> It's one of the reason trains get stuck in Europe: thieves stealing copper cables.

Even worse. Sometimes, the dumb fucks think something has copper in it, but actually it's fiber... once two copper thieves simultaneously took out the primary and secondary fiber for the GSM-R network, leading to a complete standstill in Northern Germany [1]. (Personally: given the timing, I think it was Russian throwaway agents, and I do not believe that "copper thieves" cover story for a single second)

[1] https://de.wikipedia.org/wiki/GSM-R-Ausfall_bei_der_Deutsche...