Guardian: In 1993, three years into her presidency of Ireland, Mary Robinson paid a visit to west Belfast. The trip was controversial before she went – the Irish government didn’t want her there, and neither did the British – but it became far more controversial when, in the course of her tour, she happened to shake the hand of a local politician, one Gerry Adams. The next day, “trying to be a good president, I washed the hair and waited for the hairdresser to arrive,” Robinson told an RTÉ radio show …