The nation mourns the loss today of Sen. Edward Kennedy—but in a different way than his three older brothers, all of whom were cut down in youth or midlife and long before they completed their work on Earth. Ted Kennedy had to deal with a degree of trauma and loss that few of us can ever know, and with the abrupt and unexpected deaths of three of his closest family members, he was thrust into the role of patriarch of his famous and large but shrunken family. Yet the tragedy and the responsibilit