[TheAdamAndChe]

Exactly. The reason the US has had a drawn-out War on Terror right now is because it has the potential to hurt us more than anything else. Asymmetric warfare strategies can be very, very effective while using almost no resources.

[kefka]

Absolutely. And there are many a jobs that can allow a great amount of destruction on the sly, and cheaply.

I'll refrain about mentioning exactly what - but many of us are engineers. It would not be difficult to get some ideas.