If you enjoy reading about risk and root cause analysis in general try the venerable Usenet group comp.risks or read the digest web version at http://catless.ncl.ac.uk/risks/. It's one of those internet sinkholes that can eat hours of your time.
Check out The Design of Everyday Things by Don Norman too. He talks very highly of the NTSB and their accident investigation reports. The root cause isn’t usually one single error, but a series of mistakes that collectively caused the accident.
I love this newsletter but they switched to sending out content wrapped in pre tags with baked-in newlines a few years ago and the value of fighting through wasn't worth it.
The newlines are baked into the rss feed too, which breaks my newsreader. I've talked to the maintainer but they didn't want to change the stack they use to produce it.
