Another media mogul is taking aim at Philippe Dauman

Viacom Chief Executive Philippe Dauman may have to deal with not one but two cantankerous media moguls. Dauman was already feeling the heat from Viacom’s controlling shareholder Sumner Redstone when billionaire cable mogul John Malone weighed in on the battle for control of the New York media conglomerate. Malone, who appeared Thursday at Allen &...