Very sad story. This page introduced me to Nancy Leveson's work a few years back (her paper on the Therac is linked at the bottom of the Wiki page). She's writ

Very sad story. This page introduced me to Nancy Leveson's work a few years back (her paper on the Therac is linked at the bottom of the Wiki page). She's written two excellent books (and a number of papers) on engineering, safety and complex systems which are well worth reading. http://sunnyday.mit.edu/ http://sunnyday.mit.edu/