On this week’s episode of The MadTech Podcast, ExchangeWire’s Rachel Smith and Lindsay Rowntree are joined by Sandy Ghuman, SVP data strategy at Silverbullet, to discuss the latest news in ad tech and martech. In this session, they cover: Kroger's and Walmart's ventures into ecommerce advertising; the UK's new regulatory body for Big Tech; and what publisher consolidation could mean for targeting.