Touting her unique life experience, Hillary Rodham Clinton (shown) launched her campaign for president on Sunday. Above all, she says, she is a grandmother who simply wants America’s grandchildren to have an opportunity to succeed: Becoming a grandmother has made me think deeply about the responsibility we all share as stewards of the world we inherit and will one day pass on. I’m more convinced than ever that our future in the 21st century depends on our ability to ensure that a child born in the hills of Appalachia or the Mississippi Delta or the Rio Grande Valley grows up...