Alzheimer's treatment shelved, and UK's new spy satellite

In this edition of The Naked Scientists: the regulator says the Alzheimer's drug lecanemab is safe, but NICE say we can't afford it; also, the UK MOD launches its first Earth-imaging satellite. We talk to the makers; and the BBC's Frank Gardner on why the UK's butterflies need our help... Like this podcast? Please help us by supporting the Naked Scientists