English country mansions, colonialism and historic slavery

The National Trust manages historic properties and areas of countryside in England, Wales and Northern Ireland. In September, the Trust commissioned a report on connections between their properties and colonialism, including links with historic slavery. The report attracted the attention of a group of Conservative MPs who are attempting to discredit the work of the historians who produced it. We speak with Professor Corinne Fowler of the University of Leicester about the work and the attacks on it.