For a special edition of Downstream IRL, Ash Sarkar is joined by philosopher, author, and one of the world's most cited academics, Judith Butler. Their new book, 'Who’s Afraid of Gender' charts how a transphobic moral panic morphed into an all-our war on so-called ‘gender ideology’. Together, Ash and Judith explore how Britain became TERF island, the limits of self-identification, and what really defines a woman.