I’ve had a really good time the last two weekends attending The Event Leila Johnston’s talk series on absolutely catastrophic risks (think cosmic rays, supervolcanos and worse.) I did a talk called complexity kills on understanding risk and Simple Critical Infrastructure Maps.
Download the talk, slides and Dealing in Security. They are also embedded below.
The Gupta State Failure Management Archive has a lot more of this kind of thing. Download a copy, you never know when you might need it.
Here are my slides.