Kate Adie introduces dispatches from writers and correspondents around the world. This week, Lyse Doucet reports from her native Canada on the country’s sponsorship scheme for refugees; Joe Miller considers the major impact there has been on a Texas border town of many months of migration from Central America by women and unaccompanied children; Lucy Ash travels to the Loire Valley to visit France’s first centre for deradicalisation and discovers what local people think of it; Kamal Ahmed considers whether the Swiss, who have negotiated a bespoke deal with the European Union, offer a model for the United Kingdom to emulate in the Brexit negotiations; and Chris Terrill joins a British ex-soldier who is training wardens in one of South Africa’s private nature reserves to resist poachers.