He conducted the first radio search for extraterrestrial intelligence and helped construct the Voyager interstellar record, which carried pictures and music from Earth out into the cosmos.

FORBES: 02.18.08, 6:00 PM ET

The centre-right Alliance government first presented proposals in early 2007 aimed at allowing the National Defence Radio Establishment (FRA), a state intelligence agency, to monitor a wider range of Internet and telecoms traffic into and out of Sweden.

ECONOMIST: A new surveillance law causes a rumpus in Sweden

They had no reason to doubt the truth of subsequent messages that flowed from Mr Chapman's radio, compiled by the creative minds of the intelligence service.

ECONOMIST: Eddie Chapman

Lawmaker Tzachi Hanegbi, head of parliament's Foreign Affairs and Defense Committee during the time of the prisoner's detention in 2010, told Israel Radio on Sunday his committee was frequently briefed by Israel's intelligence bodies on matters of national security, but he was never told about the prisoner.

NPR: Israeli Premier Defends Israel In Prisoner Scandal