This was about twenty years ago, and I lost the file to disk corruption.

I do remember some of the proposed attacks.

The most of scary one was if the terrorists have a decent number of people is to drive around and destroy transformers at electricity substations.

A lot of those locations are unmanned and have minimal security.

The risk is that there just aren’t that many spare transformers available globally above a certain size and they take months to build.

If you take out enough of them fast enough, you can cripple any modern energy-dependent economy.

This tactic very nearly worked for Russia in Ukraine.