WTO chief: Vaccines for all, or share your technology

<p>From the BBC World Service: Ngozi Okonjo-Iweala, director general of the World Trade Organization, wants pharma giants to do more to support vaccine production for and in developing countries. Also, France will begin its third national pandemic lockdown on Saturday, shutting nonessential stores. And, is there a right way for companies to play an April Fools&#8217; Day prank?</p>