NBC suit
An NBC (nuclear, biological, chemical) suit, also called a chemsuit or chem suit or chemical suit is a type of military personal protective equipment. NBC suits are designed to provide protection against direct contact with and contamination by radioactive, biological or chemical substances, and provides protection from contamination with radioactive materials and some types of radiation, depending on the design. It is generally designed to be worn for extended periods to allow the wearer to fight (or generally function) while under threat of or under actual nuclear, biological, or chemical attack. The civilian equivalent is the Hazmat suit. The term NBC has been replaced by CBRN (chemical, biological, radiological, nuclear), with the addition of a new threat, radiological, meaning radiological weapon.
NBC
On June 18, 1975, NBC launched the NBC News and Information Service (NIS), which provided up to 55 minutes of news per hour around the clock to local stations that wanted to adopt an all-news radio format. NBC carried the service on WRC in Washington, and on its owned-and-operated FM stations in New York City, Chicago and San Francisco. NIS attracted several dozen subscribing stations, but by the fall of 1976, NBC determined that it could not project that the service would ever become profitable and gave its affiliates six months' notice that it would be discontinued. NIS ended operations on May 29, 1977. In 1979, NBC launched The Source, a modestly successful secondary network providing news and short features to FM rock stations.