The chocolate-coated history of Africa’s smallest economy

<p>From the BBC World Service: Chinese companies warn of the impact Shanghai&#8217;s lockdown will have on the wider supply chain and economy. Plus, why Emirates is still taking passengers and cargo to Russia. And, a visit to São Tomé, just off Africa&#8217;s west coast: The continent&#8217;s smallest economy that packs a big cocoa punch.</p>