Original sentence: A video news release (VNR), as the term is known in the United States, is a public relations or a propaganda technique whereby a video or radio program is produced, edited and distributed to local and national television, radio stations and cable networks (collectively, "media outlets") by  PR firms, advertising agencies, marketing firms, corporations, and many U.However, others find that to be a self-serving defintion perhaps crafted to down play the the ethical questions the use of VNRs brings up.While unbounded by recognized standards of journalistic ethics, the most widely used form of VNR is crafted in the style of a news report and used, in whole or in part, primarily, during news and public affairs programs; yet, almost without exception, no mention is made within these programs that the source of a particular story is, in fact, a VNR
Edited sentence: A video news release (VNR), as the term is known in the United States, is a public relations technique whereby a video or radio program is produced, edited and distributed to local and national television, radio stations and cable networks (collectively, "media outlets") by  PR firms, advertising agencies, marketing firms, corporations, and many U.Video news releases have been tools of the public relations industry and the government for more than 30 years