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In this edition: Spreading US election misinformation, deciding the future of the NHS, and improving breast cancer surgery.

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– We hear about a new consortium, led by Imperial researchers, tracking changes in new coronavirus variants, and find out how kombucha tea ingredients are being used to make new smart living materials.

– Analysis of the shows where misinformation originated from, including traditional and social media, foreign influences, and in the case of the 2020 election, the president himself.

This feature is an excerpt from ' – a podcast from Imperial's Institute for Molecular Science and Engineering.

– The NHS has worked incredibly well as an ‘illness’ service, but what about protecting and promoting good health? Investing in health could benefit us all, argues Dr Jonathan Pearson-Stuttard in his new book with Dame Sally Davies,

You can also listen to an extended version of this interview.

– Around 20 percent of surgeries to remove breast cancer tumours leave some behind, requiring a second surgery. To reduce this, Imperial researchers are that identify tumours, coupled with special cameras to guide surgeons.

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The podcast is presented by Gareth Mitchell, a lecturer on Imperial's MSc Science Communication course and the presenter of on the BBC World Service, with contributions from our roving reporters in the Communications and Public Affairs Division.