If Medicare for All (MFA) is the answer, then what is the question? It is obviously about how Americans can become more dependent on an exploding and careless federal bureaucracy. At the Democratic debate on Tuesday evening, Bernie Sanders pushed his tried if not true canard that MFA is the solution to America’s health care problems. In support of MFA, the Washington Post published a glowing story about this allegedly definitive research proving Sanders’ claims to be correct. Jeff Bezos’ left-wing paper cited a just-published article in the U.K. medical journal Lancet, by Galvani, Parpia, Foster, Singer and Fitzpatrick (three...