As the government's controversial new benefits system universal credit is rolled out, Panorama is with families surviving on food bank handouts as they struggle with their claims. The programme follows one council as it deals with mounting rent arrears and tenants in crisis. The government has responded to criticism of the new system by announcing an extra £1.7 billion, but is it too little too late?

With exclusive access to the Salisbury investigation, Jane Corbin examines the inside story of the Russian attempt to assassinate former spy Sergei Skripal and his daughter Yulia.