I would suspect that between June and when he was picked up they were building a case.
Admittedly they could have bypassed due process and just bumped them off in June and that would be the end of it. So they probably are trying to embarrass the Iranian leadership.
Or, they could have been holding off waiting for the release of the American hikers/ spies.
www.bbc.co.uk/news/world-middle-east-14897868
They could be fairly safe in the knowledge their undercover agent wouldn't be supplying explosives.
(, Wed 12 Oct 2011, 14:41, Reply)