Authorities at the U.S. Capitol arrested filmmaker Josh Fox on Wednesday as he attempted to film a congressional hearing on fracking. Police have charged Fox, who was not carrying a media credential, with unlawful entry. Barring journalists from public hearings is unusual. Fox's 2010 film, Gasland, explored the growth and safety of hydraulic fracturing and was highly critical of the natural gas industry. It received a 2011 Oscar nomination for best documentary.
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