A decision by a U.S. government agency prohibiting the transmission of 3D dental records into the U.S. could open the door to further content restrictions on the Internet, digital rights groups have said. The heart of the question is whether the U.S. International Trade Commission can block digital goods, in additional to physical ones, from being imported to the U.S. The Motion Picture Association of America has watched the agency’s decision closely, with an eye on using the USITC to block websites.