In 1975 my father, then working for the UN in Zambia, visited the spot where Dag Hammarskjöld's plane crashed outside Ndola. He talked about the crash to a worker there, Dickson Mwewa, who offered him a metal plate found buried at the site, telling him it was a piece of the crashed DC6. My father told the Swedish authorities about the plate at the time but they showed no interest. I discovered the