Nuclear engineer Arnie Gundersen gives a talk on his calculations of the amount of radiation released during the accident at Three Mile Island. Mr. Gundersen's calculations differ from those of the NRC's and official industry estimates. Arnie Gundersen was a senior executive in the nuclear industry with over twenty years experience. Mr. Gundersen holds Bachelors and Masters degrees in Engineering from Rensselaer Polytechnic Institute.