The U. S. General Accounting Office issued a report on September 28, 1984, which stated that between 1940 and 1974, DOD and other national security agencies studied thousands of human subjects in tests and experiments involving hazardous substances.

The U. S. General Accounting Office issued a report on September 28, 1994, which stated that between 1940 and 1974, DOD and other national security agencies studied hundreds of thousands of human subjects in tests and experiments involving hazardous substances.

The U. S. General Accounting Office issued a report on September 28, 1994, which stated that between 1940 and 1974, DOD and other national security agencies studied " hundreds, perhaps thousands " of weapons tests and experiments involving hazardous substances.

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