Since the act prevented cable operators from regulating publicly generated content, much controversy developed around what was allowed to appear on these channels. A public-access television center in Eau Claire, Wisconsin was faulted for televising a video created by Christian Bangert, a man convicted of murdering a city police officer. The tape was shown repeatedly during Bangert's trial, and many people felt its airing was in bad taste. Across the country, controversial content such as explicit sex and promotion of Nazi groups have aired via PEG channels. Congress, in an attempt to protect viewers from indecent programming, passed the Cable Television Protection and Competition Act of 1992, which allowed the FCC to establish rules requiring cable operators to prohibit particular shows. In 1996, the U.S. Supreme Court declared that the law was unconstitutional claiming that cable operators should never be required to act on behalf of the federal government to control expression in relation to content.