Some 113 university, government, hospital and corporate laboratories engaged in research often with potential to be used for germ warfare have refused to disclose their operations to the public as required by Federal rules, a nonprofit watchdog agency has charged. Instead of shutting their operations down, however, the National Institutes of Health(NIH), of Bethesda, Md., the government agency tasked with oversight of these laboratories, allows them to continue to operate, a peculiar stance for an entity that describes itself as ”the steward of medical and behavioral research for the Nation.”