What’s behind Elon Musk’s surprise China trip?

From the BBC World Service: Tesla CEO Elon Musk paid a visit to China, where he’s been trying to clear regulatory hurdles that have hindered the company’s self-driving technology roll-out there. Then, Sweden’s police have been inundated with reports from people who have been swindled out of their gold belongings. And later, musicians who sample nature can now split their profits with environmental causes through a new United Nations-backed project.