I live in a town that has a rail line passing through it. I am also an 'emergency first responder'. We have 150-car freight trains every few hours. I try not to think of what's on those trains. It makes sleep difficult. Freight train wrecks are what we call ABC calls, because the stuff on the trains is often extremely dangerous. Some will burn and have to be allowed to burn because tha application of water would cause a violent explosion. Some goes from a liquid to gaseous state and 'creeps' along the ground seeking low areas. It displaces the O2 and suffocates anything that depends on O2 for survival.Other chemicals are safe--as long as they don't mix with other chemicals. Then things happen really fast and the result can be seen from miles away, even if the sound doesn't quite carry that far.

I would prefer to have a train load of 'bunker busters' than the daily and nightly trains we do have. I'd sleep better.

Oh, yes. ABC: Armchair, Binoculars, Case of beer.