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 The term NBC has been replaced by CBRN (chemical, biological, radiological, nuclear), with the addition of a new threat, radiological, meaning radiological weapon.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
In 1934, the Mutual Broadcasting System filed a complaint to the Federal Communications Commission (FCC), following the government agency's creation, claiming it ran into difficulties trying to establish new radio stations in a market largely controlled by NBC and the Columbia Broadcasting System (CBS). In 1938, the FCC began a series of investigations into the monopolistic effects of network broadcasting. A report published by the Commission in 1939 found that NBC's two networks and its owned-and-operated stations dominated audiences, affiliates and advertising in American radio; this led the Commission to file an order to RCA to divest itself of either NBC Red or NBC Blue.