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NUCLEAR REACTORS AND POWER 71 clear technique called, "Activation Analysis." As is shown in the film, this method is some 100 to 1,000 times more powerful (more sensitive) for the detection of most elements than methods currently available in the usual crime laboratory. This means that evidence-samples too small to be analyzed by other methods (even microscopic samples) can often be analyzed successfully by this new technique, and tell-tale bare trace concentrations can be measured. Frequently, the analysis can be done nondestructively — thus preserving the samples. This highly sensitive and powerful analytical technique that has grown out of the study of peaceful uses of nuclear energy is a method of analyzing samples for various elements by bombarding them with neutrons, to make some of the elements radioactive, and then identify- ing and measuring the induced radioactivities to complete the quan- titative analysis. The film shows the application of activation analysis to the investi- gation of several illustrative types of criminal cases; murder, bur- glary, and narcotics peddling. The cases described are based on actual cases. One case is described all the way from the commission of the crime through the trial in court; the others from the crime through the laboratory investigation. The film is designed to be of particular in- terest to law enforcement people, members of the legal profession, university students, service organizations, and the educated layman. NUCLEAR REACTORS AND POWER ATOMIC POWER TODAY: SERVICE WITH SAFETY. 28V 2 minutes, color. Produced for the Atomic Industrial Forum, Inc., and the USAEC by Seneca Productions, Inc. For information about the sale of prints, inquire at the Audio Visual Branch, Division of Public Information, USAEC, Washington, D. C. 20545. Tells the story of central station atomic power plants and how they serve the country now and will continue to do so in the future. Starting with basic information on how electricity is produced from water power and fossil fuels such as oil, gas and coal, the film introduces atomic fuel as a vast new energy resource that helps keep down the cost of electricity. The film shows atomic fuel being fabricated and, through animation, how it is put to work in a nuclear reactor to produce heat which will ultimately be used to produce electricity. The safety aspects of atomic power, including both natural and en- gineered safeguards, as well as the demand for dependability by the operating utility and by the customer, are discussed. We see utility conferences relating to a proposed atomic power plant and the care that goes into design and planning.