Another pathetically grateful person here too. I heard it by accident - just came into the kitchen, switched on the radio, and heard Nick Robinson introduce the item. When I heard there were two scientists on, one of whom was an adviser to the IOC, I assumed they were aiming for some fake "balance" but no, for once, we had two scientists coolly, clearly and calmly articulating the advantages male athletes have over female athletes. They completely destroyed McKinnon's arguments with the bare facts. Well done, BBC - for once.