Trump administration imposes tariffs on China, Canada and Mexico

As the US administration imposes tariffs on its three largest trading partners - Canada, Mexico and China - we ask what impact they will have, first and foremost, on China. Also on the programme: as Rwandan-backed rebels advance on the city of Bukavu in the Democratic Republic of Congo, a women’s rights activist tells us people are scared; and how to ensure the survival of calculations chalked on a blackboard by Albert Einstein.Photo: US President Donald Trump holds a press conference at the White House in Washington DC Credit: WILL OLIVER/EPA-EFE/REX/Shutterstock