Daddy's home: Millennial fathers amp up parenting

Tony Dokoupil takes a Father's Day look at a new generation of devoted Dads: Don't let the sport coat fool you -- Simon Isaacs is ready for the playground. He's with his two-year-old daughter Kaia, selling imaginary tacos.And while Simon's afternoon with her may not look like much, certainly no more than what many moms do every day, the 36-year-old entrepreneur sees it as a small act of revolution.Dokoupil asked, "When you talk about a social movement, are we witnessing it right here? Two guys o