Nazanin Zaghari-Ratcliffe’s release, alongside fellow prisoner Anoosheh Ashoori, has attracted enormous amounts of praise and joy at a time when the news has felt like a relentless stream of misery. How could you feel anything other than joy at the release of a young mother after six years away from her child? These freed Britons have endured an unimaginable plight, suffering horrific conditions in one of the world’s most notorious dictatorships.