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This week we meet one of NASA’s early computer programmers, the man behind the system which guided the Apollo 11 mission to the moon – only to fail at the last minute. Also in the programme we look at what happens to information about ourselves that’s stored electronically, when we die. We ask whether it’s worth making a digital will. And we chart the ever changing murals scene in Northern Ireland. Used to express the views of both sides in the long running conflict, these historic artworks are receiving a digital make over.