Why is Australian wine about to get way more expensive in China?

Beijing is set to add tariffs starting Saturday, escalating trade tensions. Also, plans to export a COVID-19 vaccine to developing countries. And, is Sri Lanka too reliant on China for capital investment?
The team
David Brancaccio
Host
Victoria Craig
Host, BBC
Stephen Ryan
Producer, BBC
Jonathan Frewin
Producer, BBC
Daniel Shin
Producer
Jay Siebold
Technical Director
Brian Allison
Engineer
Meredith Garretson
Producer
Erika Soderstrom
Producer/Director
Rose Conlon
Producer
Alex Schroeder
Producer