Coronavirus stops MWC tech show

The mobile industry’s biggest annual event is called off over fears of attendees spreading the infection. But Samsung, which held its own launch event this week, revealed a new attempt at a phone with a folding screen. Plus, we visit Startup Grind Global to discover the latest ideas looking for Silicon Valley investors’ money. Presented by Rory Cellan-Jones, with BBC tech reporter Chris Fox, and special guest Rachael Myrow, senior tech editor at Californian broadcaster KQED.