When Steve and Leslie Shaeffer's daughter, Selah, was diagnosed at age 4 with a potentially fatal tumor in her jaw, they figured their health insurance would cover the bulk of her treatment costs. Instead, almost two years later, the Murrieta, Calif., couple face more than $60,000 in medical bills and fear the loss of their dream home. They struggle to stave off creditors as they try to figure out how Selah can keep seeing the physician they credit with saving her life. ADVERTISEMENT"We're in big trouble," Leslie said. Shortly after Selah's medical bills hit $20,000, Blue Cross stopped covering them...