Healthy debate

Single-payer. Insurance-based. Socialized medicine. Free-market reform. A lot of terms are flying in the debate over what shape healthcare reform should take in the U.S. Ask two people to tell you how it should be approached, and you'll get six answers. But at this stage in the process, it's important to put all ideas on the table. With that in mind, we present three viewpoints on what a new system should -- and shouldn't -- look like.