Random thoughts just popped in my head and I just remembered that all the water in a given city is all centralized. Just add poison and boom, eradicated an entire city who are full of dissidents/opposition as punishment for voting the “wrong” way, or for a protest, or if the population is filled with “filthy undesirable [Insert Racial Group Here]”, or something like that.
Kinda unsettling to see that we are all just attached to “the grid” 😖
A very fundamental part of that is the amount of moving parts. Every person in the chain that is required for the thing to happen, has to either support the thing or otherwise follow through.
This very concept is what has saved us from nuclear apocalypse so far. Very literally so.