John Edwards has been bashing big health insurers in recent days with the story of a girl who died waiting for a liver transplant. But the details of the case suggest the Democratic presidential candidate may be oversimplifying the tale. Nataline Sarkisyan had been battling leukemia for three years. Insurer Cigna Corp. rejected coverage for a liver transplant, then reversed its decision and said it would pay. The 17-year-old died before the operation could take place ...Nataline's case could provide fuel to both sides of the argument about whether insurance companies generally do a good job covering Americans. The day...