Catherine Rampell: A question missing from the health-care debate: Will doctors make less money?

Won't single-payer health care require higher taxes? (Yes, obviously.) And won't abolishing employer-sponsored insurance face opposition from some of the 160 million people happily on those plans now? (Almost certainly.)At the debates, in post-debate spin rooms and on Sunday TV show interviews, the Democratic presidential candidates are asked these questions repeatedly as if they are "gotcha" questions. Then they duck and weave to avoid providing the honest but damning (affirmative) sound bite,