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 The term NBC has been replaced by CBRN (chemical, biological, radiological, nuclear), with the addition of a new threat, radiological, meaning radiological weapon.
NBCSN
In 2011, Comcast, the original owner of the network, acquired a majority stake in NBC Universal. As a result, Comcast merged the operations of its pay channels with those of NBC. In particular, it aligned the operation of its sports channels with NBC's sports division, NBC Sports. On January 2, 2012, Versus was rebranded as the NBC Sports Network (on-air branding later shortened to NBCSN) to reflect these changes. As of September 15, 2014, the majority of NBC Sports' operations, including NBCSN, is based in facilities in Stamford, Connecticut.