Two documentary film-makers are facing decades in prison for recording US oil pipeline protests, with serious felony charges that first amendment advocates say are part of a growing number of attacks on freedom of the press. The controversial prosecutions of Deia Schlosberg and Lindsey Grayzel are moving forward after a judge in North Dakota rejected "riot" charges filed against Democracy Now! host Amy Goodman for her high-profile reporting at the Dakota Access pipeline protests. But authorities in other parts of North Dakota and in Washington state have continued to target other film-makers over their recent reporting on similar demonstrations. Schlosberg, a New York-based film-maker, is facing three felony conspiracy charges for filming protesters on 11 October at a TransCanada Keystone Pipeline site in Pembina County in North Dakota. The 36-year-old ... could face 45 years in prison. In Goodman's case, a judge forced prosecutors to drop a serious "riot" charge. But prosecutors and sheriff's officials said they may continue to pursue other charges against the critically acclaimed journalist. In Schlosberg's charges, North Dakota prosecutors have alleged that she was part of a conspiracy, claiming she traveled with protesters "with the objective of diverting the flow of oil". "I was surprised at the conspiracy charges. I never thought that would ever happen," her attorney Robert Woods told the Guardian. "All she was doing was her job of being a journalist and covering the story."