A video was aired on June 22, 2017 showing how people were treated as part of the pipeline protest in September 2016, which included evidence of Dakota Access guard dogs with bloody mouths after attacking protesters. Democracy Now! journalist Amy Goodman filmed the incident, which she published in support of opposition to the pipeline. Following the publishing of her video, North Dakota Police issued an arrest warrant for Goodman under accusations of Criminal Trespass. Goodman responded, "This is an unacceptable violation of freedom of the press..."