Symbols of failure: the deeper issue that connects border walls

From Korea to Cyprus to Berlin to Israel, Kai Wiedenhöfer has spent decades photographing all the major border walls – and learned how despite what their defenders say, each is far from uniqueOn October 1989, as the first television images of the fall of the Berlin Wall began to be broadcast, Kai Wiedenhöfer, a 23-year-old student photographer, was attending a symposium in Dortmund with the well-known American photojournalist Leonard Freed.Prompted by Freed, Wiedenhöfer deci