However, about a dozen years earlier there had been a real incident at NRX. It involved a partial meltdown largely due to the primitive modes of communication that existed in those days. For instance the supervisor in the control room had to give orders over an ordinary telephone to technicians in the basement beneath the reactor. At a critical time when it became obvious that things weren’t going quite right the supervisor called with alternative instructions, but the technician who initially received the call had put the phone down to carry out the earlier instructions. There was also some evidence of mechanical failure and this too, was probably due in large part to the technology of the day.