Saying "everyone is equally to blame" is great if you want to sound reasonable and paint yourself as a moderate voice in a debate, but it doesn't really work if you actually want to be correct.
From a commenter called "ThisIsMyRealName" over at Slate
I don't think that's quite right. Assigning blame isn't about being correct. It's about figuring out how to prevent the problem from being repeated. Once you know who is at fault and how, you know what to warn them not to do in order to keep it from being repeated.
Rationality quotes time!
The usual rules: