Tightropes are not confined to circuses and the occasional sepia photo of a daredevil trying to walk across the Grand Canyon on a single stretch of cable. Tourism is the owner of a long and wobbly high-wire which crops up all over the planet – particularly in those locations where epic heritage rubs against a keen desire to bear witness to it.
Anyone who has been to Rome and ambled into the Colosseum – or flown to the heights of Peru and strolled the cobbles of Machu Picchu – will know the problem. People. Loads and loads and loads of people – milling around in what are often fragile contexts.
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