Read a transcript of this episode on FT.com https://www.ft.com/content/b6aa92ea-4a07-4423-acbe-deacad5313a5 Twitter co-founder Jack Dorsey stepped down as the company’s chief executive on Monday, and an activist investor has called on commodities giant Glencore to spin off its thermal coal business. Plus, the FT’s global pharmaceutical correspondent, Hannah Kuchler, explains how Pfizer came to dominate the market for Covid jabs and what the concerns are about the company’s market power.  Activist calls on Glencore to spin off coal assets https://www.ft.com/content/6f5a8c43-76d4-4843-a15e-47bc767ec6d8 Jack Dorsey resigns as Twitter chief executive https://www.ft.com/content/bf45fd08-51d1-41bb-82cd-b3157a5da055 The inside story of the Pfizer vaccine: ‘a once-in-an-epoch windfall’ https://www.ft.com/content/0cea5e3f-d4c4-4ee2-961a-3aa150f388ec The FT News Briefing is produced by Fiona Symon and Marc Filippino. The show’s editor is Jess Smith. Additional help by Peter Barber, Gavin Kallmann and Michael Bruning. The show’s theme song is by Metaphor Music. The FT’s global head of audio is Cheryl Brumley.    See acast.com/privacy for privacy and opt-out information.