Frederic Raphael explored the Pyrenees, the frontier between France and Spain, which at the time was preparing to join the European Economic Community.
John Wells covered the Iron Curtain that split East and West Germans.
Nadine Gordimer visited the war-torn border area between Mozambique and her native South Africa.
Richard Rodriguez showed how the rich North and poor South converged at the US/Mexican border.
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Nigel Hamilton hiked up the boundary between Russia and Finland.
Jon Swain visited the Thai/Cambodian border where thousands of Cambodian refugees had been stranded for over ten years.
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