I read that 1993 THERAC-25 article when it first came out. One factoid which stuck with me was that after the accidents, the manufacturer, AECL, retreated to th

I read that 1993 THERAC-25 article when it first came out. One factoid which stuck with me was that after the accidents, the manufacturer, AECL, retreated to their core business: "AECL's primary business is the design and installation of nuclear reactors."