After the Berlin wall

Standing in a small park in south London, not far from the grim Elephant & Castle roundabout, is a huge ugly piece of concrete, covered in graffiti. But this is not some remains of inner-city urban decay waiting for the bulldozer to put it out of its misery. It's a small section of the Berlin Wall and it's a museum exhibit. Our children now learn about the Cold War in school history lessons. We should be pleased they're not learning about the Third World War instead, but it's always surprising to find something that doesn't seem that long ago is now part of the school curriculum.