Excess deaths, vaccine harms and lockdowns: how should experts communicate about these complex, politically explosive issues? Michael Blastland quizzes statistical duo David Spiegelhalter and Anthony Masters on what they’ve learnt while writing a weekly column for the Observer. They explore the importance of context and comparison, the trustworthiness of sharing uncertainty and the power of a good analogy. The graphic discussed in the episode - which compares the potential harms and benefits of the AstraZeneca vaccine - can be seen here: https://wintoncentre.maths.cam.ac.uk/news/latest-data-mhra-blood-clots-associated-astra-zeneca-covid-19-vaccine/  David and Anthony’s columns are collected and expanded in their new book Covid By Numbers: https://www.penguin.co.uk/books/446/446585/covid-by-numbers/9780241547731.html  *** Views to share? Get in touch on Twitter @RiskyTalkPod Risky Talk is produced by Ilan Goodman for the Winton Centre for Risk and Evidence Communication at the University of Cambridge.