The Panel with Finlay MacDonald and Phoebe Fletcher (Part 2)

A collection of undelivered letters form the 17th century has been uncovered in the Netherlands. What the Panelists Finlay MacDonald and Phoebe Fletcher have been thinking about. The director of Drug Screeners Ltd Shannon Balzat talks about the incidences of methamphetamine contamination and how easy it is to fool the drug detectors. Some vegetable oils release cancer-causing toxins. Laurence Eyers of the Institute of Chemistry explains.