The director of the campaign group Cage was detained in Paris for almost 24 hours last week and then sent back to London after the French government accused him of spreading conspiracy theories about “Islamophobic persecution”. In 2020, Cage, which campaigns on behalf of communities affected by the “war on terror”, overturned a French travel ban for its director, Muhammad Rabbani. But on arrival in Paris last Tuesday for meetings with French journalists and civil society leaders, Rabbani was told that the interior ministry had imposed a new travel ban preventing him from entering the country. He was questioned and...