In the aftermath of fighting or repression, people are often told to forget things. But in free societies, selective memory cannot be imposed for ever

THE 15 boxes of bones were wrapped in the red, yellow and purple flag of the Second Republic. Each held the remains of a man whose support for a brief political experiment in the 1930s had proved fatal. At a ceremony in Madrid on March 6th the bones were given to descendants: mostly middle-aged grandchildren, but sometimes already aged sons or daughters.

They wept for men they had mostly never known. The victims had died of hunger and disease in one of the makeshift prison camps set up by General Francisco Franco in the early days of his 36-year dictatorship, established after the republic’s defeat in a bloody, three-year civil war. …