A mass demonstration of stupidity, agression, meanness, and bullying. A way of demonstrating that the people in charge are incompetent enough to not be able to see any other method of doing things, or lack respect for life enough that they really don't care that they're making people die.

The only thing worse than the person in charge who's willing to sacrifice the lives of others (but not themselves) is all the people who go along with it.

A striking example of the fact that the human race is still, in the grand scheme of things, about as mature as a little child.