It is without doubt one of the most iconic migration images of 2014. On 22 October, some dozen undocumented African migrants are caught on camera by a Spanish activist as they straddle the triple fence surrounding Melilla, a Spanish enclave in North Africa. Outside lies the wild grass and craggy rocks of the Moroccan borderlands; inside awaits a verdant golf lawn. The two golfers, indifferent to the fence-straddlers, are dressed in immaculate whites; the migrants, in shabby rags. To their right a border guard in riot gear eases himself onto the fence, ready to confront those trespassing on the manicured gardens of “Fortress Europe”.