The number of U.S. billionaires doubled in the past decade, and those hedge fund managers, CEOs and celebrities need trained staff to manage their many estates. That’s the goal of Starkey International Institute of Household Management in Denver. For about $20,000, students can learn how to oversee and care for today’s great estates. Joining us is freelance writer John P. Davidson. He attended the Butler Boot Camp at Starkey and wrote about it for the January issue of Harper’s magazine.