The fact of the matter is, we don't do that. I have had my bags precede me on more than one occaision. The airline just moves along, and then holds the bag (or not, I had one bag which they tried to send to San Salvador, from mislabelling).

As for trains, they are so vulnerable. The City of New Orleans was derailed some years back. The perpetrators bridged the circuit on the track (designed to inform the dispatchers of breaks in the rail) and then removed a chunk of track from a curve.

I can think of several ways to make the track vulnerable to breakage. I can think of several ways to cause a train to derail. I can think of more than a few ways to cause the track to blow when a train is on it.

I can do most of those without being anywhere near the train when it happens.


TK