What is "sag-aftra"

Screen Actors Guild‐American Federation of Television and Radio Artists (SAG-AFTRA) is an American labor union representing approximately 160,000 film and television principal and background performers, journalists, recording artists and radio personalities worldwide. The organization was formed on March 30, 2012, following the merger of the Screen Actors Guild (created in 1933) and the American Federation of Television and Radio Artists (created in 1937 as American Federation of Radio Artists, becoming AFTRA in 1952 after merger with Television Authority). SAG-AFTRA is a member of the AFL–CIO, the largest federation of unions in the United States.