Abstract
THE appearance of new agents that carry with them a potential menace to the health and security of the public is bound to be accompanied by a very understandable attitude of fear. The highly dramatic introduction to the world at large of the release of atomic energy has produced an unprecedented degree of concern for public safety. Frequently, the concern expressed has assumed the proportion of panic owing to the lack of sufficient basic information on the part of those presenting their evaluations of the problems posed by this twentieth-century version of Pandora's box.For example, considerable apprehension has been . . .