How much money was AECL making selling these things? You'd think a second pair of eyes on the code would not cost too much. Do I blame the one person? Not reall

How much money was AECL making selling these things? You'd think a second pair of eyes on the code would not cost too much. Do I blame the one person? Not really, who in this world hasn't written a race condition at some point? RCs are also one of those things where someone else might spot it a lot sooner than the original writer. I agree with the sentiment that they took the software for granted. I get the feeling that happens in a lot of settings, most of them less life-threatening than this one. I've come across it myself too, in finance. Somehow someone decides they have invented a brilliant money-making strategy, if they could only get the coders to implement it properly. Of course the coders come back to ask questions, and then depending on the environment it plays out to a resolution. I get the feeling the same thing happened here. Some scientist said "hey all it needs is to send this beam into the patient" and assumed their description was the only level of abstraction that needed to be understood.