Is there a good list of "worst software project failures ever" in the history of software development?
For example in Canada a "gun registry" project spent around two billion dollars.
This is of course, insane, even if the final product "sort of worked".
I have heard of an FBI Case file system which there have been several attempts to rewrite, all of them so far, failures.
There is a book on the subject (Software Runaways). There doesn't seem to be be a software "boondoggle" list or "fiasco" list on Wikipedia that I can see.
(Update: Based on a response of human sympathy Therac-25 would be the 'winner' of this question, except that I was internally thinking more of Software projects that had as their deliverable, mainly software, as opposed to firmware projects like Therac-25, where the hardware and firmware together are capable of killing people, and also, the question was more intended to address boondoggles and bureaucratic failures rather than tragic explosions, or deaths. In terms of pure software monetary debacles, which was my intended question, there are several contenders, and an interesting future community wiki, is "what are the common traits among large software project failures with budgets over $100 million US".)