All very sad and probably avoidable. I had three compatriots die hitting a wire in Norway in a snow storm - now the Norwegians are very careful about wires and if you fly there you can see why and their wire maps are second to none. On this occasion the wire hit was a big thick cable rather than a wire and it was not on the wire map. When I dashed over to see the master map immediately after the crash I was told quote " It is not on the map because everyone knows it is there" - sometimes you just can't win........................