why cities will become lawless shortly after major event

[Rush2112]

(9 May 2013, 17:33)Jonas Wrote: I think this applies mainly to large cities. Folks in small towns (<2000) can get their like-minded neighbors together and secure things fairly well with a volunteer "neighborhood watch" and by blocking some access roads with junk cars, thus limiting the number of ways the bad guys can gain access to the town.

I agree with you Jonas, that would be ideal. small town definitely better than big city.
but just for the sake of argument: consider the average town of say 2000. How many of those folks are actually prepared for long term? if they all are that's great, but lets say only half are. that would mean half the population is going to be dependent on the others at least in the short term. So then one may be faced with the same frailties of human nature: greed and resentment.