[Gromit801]

An employer will push as much as they can.

Back in the late 90's when I ran for UP, we were going to go on strike over the fatigue ridden dispatchers who control the switches, etc. There had been a few head on collisions in Texas because of dispatchers sending two trains at each other.

[airhead]

You are correct. Greed can be one of the components of such disasters. I happen to pick on airlines because of my experience but you are correct that it happens in other industries too. The point I am trying to make is that I want others to know. It seems the only way to fight such companies is with large numbers or doing it from with in or perhaps both is the best strategy.