China: Will Covid lockdowns work?

China has put a city of more than one million people into lockdown - after just three Covid cases were detected in the city of Yuzhou. The city of Xi'an is also in lockdown. It's a familiar strategy by the authorities but will it work with Omicron? Also in the programme: will we see the end of the 'fake-it-to-make-it' culture in Silicon Valley after tech entrepreneur Elizabeth Holmes is convicted of fraud?And why bees stinging police officers is a political issue in Chile. (Photo: The Chinese city of Xi'an went into lockdown in late December 2021, due to rising cases of Covid-19. The city of Yuzhou is also now in lockdown as well. Credit: EPA)