Airmen mystery

Mystery surrounds the fate of four airmen who died in a crash in Iceland during the second world war. For almost 60 years the wreckage of their aircraft was hidden under the glacier in the north of the country, but one man's determination led to its discovery last year. Now the Royal Air Force is planning to go to the site to recover the bodies of the three Britons and one New Zealander who were on board. Gary O'Donoghue has been finding out what happened to the four men back in 1941: