National Public Radio (NPR) is a free media org. It's a national syndicator to a lot of public radio stations in the U.S. It began in '70. This was after the Public Broadcasting Act was passed in '67. This act was signed by President Lyndon B. Johnson. NPR produces/spreads news & cultural programming. Most public radio stations broadcast some NPR programs. NPR is very popular. In '05, NPR was voted the most trusted news source in the U.S.
NPR makes a 5 min. newscast that plays at the top of every hour. During some shows, it has a shorter newscast that plays at the bottom of some hours.