In tonight's edition of the science series, new reporter Anya Sitaram investigates the "morning after" pillforHIV.
Already in use in the USA, this cocktail of drugs can eradicate the Aids virus if taken straight after infection. And Craig Doyle flies towards a mountain to test a new aircraft collision avoidance device. Presented by Peter Snow and Philippa
Forrester, with Jez Nelson.
Producer Alison Rooper ; Editor Saul Nasse
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