f accidents that have already occurred.
             In 1952, at Chalk River's Nuclear Reactor, four control pads were unintentionally removed, causing a
             partial meltdown of the reactor's core.
             In 1957, a fire at the Windscale Pile No. 1 plant, just north of Liverpool, England, resulted in the
             contamination of 200 square miles of countryside when it was covered with radiation.
             In 1976, the core of the Lubmin nuclear plant in Greifswald, East Germany nearly melted down when
             safety systems failed during a fire.
             In 1979, the ever so famous, Three Mile Island reactor in Harrisburg, Pennsylvania lost coolant
             ...