On the next Fresh Air, Terry Gross speaks with Walter Isaacson. His new book is about discoveries related to RNA, the molecule at the heart of the gene-editing tool Crispr, which is being used in the fight against genetic diseases.  RNA is also the basis of the Pfizer and Moderna Covid vaccines.  Isaacson was part of a clinical double-blind study of the Pfizer vaccine.  Join us.

Fresh Air can be heard weekdays at 4:00 pm on KRCB-FM (and again at 12:00 am Tuesday through Friday)! / streaming @ norcalpublicmedia.org / Listen on the FREE KRCB Mobile App which you can download for your favorite mobile device.

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(Photo: Code Breaker, by Walter Issacson – Book cover)