In early 2010 a man was escorted to arguably the most secure prison cell in Israel. The guards taking him there had no idea who he was or what he'd done. "It is simply a person without a name and without an identity who is placed in complete and absolute isolation from the outside world. There is confidentiality surrounding the detainee in every respect" a prison official stated. When word leaked about the mysterious inmate, Israeli media began to report and speculate but no sooner had a handful of stories been published, than the coverage was shut down by one of the most comprehensive suppression orders conceivable."Hermetically sealing him away in all human terms, even within the prison, suggests that it had to be something very, very touchy", Warren Reed, a former ASIS agent tells us. Prisoner X, or Ben Zygier, a Jewish-Australian citizen, may have been a Mossad agent. So why would the Israeli service make him disappear? Warren Reed reckons we may never find out: "I think this will probably be under lock and key for 50 to 75 years, if not never to be released." But as international pressure mounts, the Knesset has launched an inquiry.