Tonight a feature on how British doctors are developing a ground-breaking newtreatment for pancreatic cancer using a laser-activated drug. Also, a survivor of the Piper Alpha oil rig disaster finds out how science could stop it happening again, and a shellfish farmer reveals his machine for producing bigger, tastier and cheaper oysters. Presented by Peter Snow and Philippa Forrester, with Jez Nelson , Craig Doyle and Anya Sitaram. Producer Jonathan Renouf ; Editor
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