This week on Transmissions, a post-punk roundtable with Mark Stewart of The Pop Group, Stephen Mallinder of Cabaret Voltaire, Eric Random (The Buzzcocks, Nico). On Mark’s latest album, VS, they team up for “Cast No Shadow.” How did post-punk hit their respective places? What role did regionalism play in the music’s development? These three join us for a freewheeling hour of discussion and deconstruction—talking about the VU, German cosmic music, black magic, and more.