Google co-founder Sergey Brin used an interview late Sunday to single out companies he saw as potential threats to the Internet. Along with singling out actual censorship and an aggressive media industry, he informed The Guardian that proprietary enviroments, such as Apple's iOS and Facebook's web code, were considered dangers. They risked isolating information, Brin argued, and an open search tool like Google couldn't have existed if sites like Facebook had been the norm.