Opinion: Medicare for All isn't realistic, but we could learn from a 1990s military experiment

The Democratic presidential hopefuls are brawling over so-called “Medicare for All.” No doubt, a good number of Americans can be helped by expanding insurance coverage, but debate based on a bumper-sticker slogan is not a plan for improvement. In late 2008 I met with then President-elect Barack Obama as part of a group of retired generals and admirals.