US tells the UK to think again on Huawei 5G

America's top cyber-security official tells us that the US is still working to get Britain to change its mind and drop Huawei tech from its 5G networks. Plus Apple warns of iPhone shortages ahead because of the Coronavirus. And how AI can help hospitals recruit the right nurses. Presented by Rory Cellan-Jones, with BBC tech reporter David Molloy, and special guest Marina Koytcheva, technology market analyst at CCS Insight.