Unfinished Business
On 18 July 1980 an Argentinian cargo aircraft mysteriously crashed in south-east Russia. In total secrecy it had been ferrying arms from Israel to Iran - an astonishing trade, because of the deep enmity between Israel and the Ayatollah Khomeini. Panorama's investigation into the background of this deal has revealed that the crash had foiled a top secret plan to organise a coup against the Ayatollah's regime. Reporter Philip Tibenham
Producer TOM BOWER
Deputy editor ELWYN PARRY JONES Editor GEORGE CAREY