Brian Keenan was teaching at the American University of Beirut when he was kidnapped by the pro-Iranian Islamic Jihad in April 1986. He was freed in 1990. Photograph: Cyril Byrne

Fine Gael leader Alan Dukes wrote to the tánaiste Brian Lenihan in 1988 to tell him of a “cynical and disquieting” move by the Iranian ambassador to c(...)