not to mention a moron with a truck can sabotage it catastrophically by merely piercing a wall.

I recommend watching Train Derailment & Sabotage - 1944 - Charlie Dean Archives / Archival Footage

https://www.youtube.com/watch?v=agznZBiK_Bs

Its a difficult task to derail a train. Its actually a logistical feat trying to derail it.

edit: [auto-correction fix]