Read about the latest featured OUTRAGEOUS Medical Bill of the Month in Shots: Health News from NPR here How could a teacher with health insurance be stuck with a medical bill more than twice his annual salary? Self-funding insurance plans are part of the answer. NPR writer Chad Terhune notes: "About 60 percent of people with employer health benefits are covered by self-insured plans, but many don't even know it, since employers typically hire an insurer to administer