Co-risk feedbacks
Enlarge IMF

Click to enlarge (and understand perfectly, of course).

Co-risk feedbacks
IMF

Click to enlarge (and understand perfectly, of course).

Man, I do not envy whoever gets the job of regulating systemic risk. This chart is from the IMF's just released Global Financial Stability Report and it's an attempt to show (yes, those numbers mean something) how all these institutions were linked by credit default swaps.

Press summary here, and the full report.