They were eating and chewing gum in the radioisotope areas...
...when they knew better!
I've worked as a radiation safety officer, and if I had caught anyone doing that in an area that I was responsible for, I would have kicked some serious butt. Alpha emitters not hazardous to human health outside the body, but very hazardous when ingested.
This film is as much an indictment of the workers, as it was the company.
Teresa
http://MermaidLady.com