[JURIST] US Attorney General Eric Holder [official website] on Friday announced that the Federal Bureau of Investigation (FBI) [official website] will open an inquiry into whether journalists working for the media company News Corporation (News Corp.) [media website] and its subsidiaries violated US laws by hacking into the mobile phones of 9/11 [JURIST backgrounder] victims. The FBI said that it had begun to examine the allegations [Al Jazeera report] against News Corp., an organization owned by media mogul Rupert Murdoch…