420. Firefighting foam, energy bills and a blood-test breakthrough

What can be done about firefighting forever chemicals? Can we avoid another heating bill hike? And will a new test tell us how quickly our organs are ageing? Olly Mann and The Week delve behind the headlines and debate what really matters from the past seven days. With Elizabeth Carr-Ellis, Gary Caffell and Irenie Forshaw.

Image credit: Hilmi Tunahan Karakaya / Anadolu / Getty Images