If there is any insect in the world we feel justified in squashing, it'd have to be flies and their kin, mosquitos. Author and ethologist Dr. Jonathan Balcombe argues that as occasionally annoying and repulsive as they are, they have a vital role to play in our very survival. In this wide-ranging discussion we look at the possibility of their sentience, their role both beneficial and harmful to us, and even their modern healing properties. Medical maggots, anyone? Plus, Dena Blumenthal from The Humane League updates us on cultured (lab-grown) "meat" for our dogs and cats.