"The progressive twentieth century changed every facet of life for American workers--from how much life you could expect to have, to what you had the right to demand of it. But by 2027, a majority of American workers will go to work every day as a part ofthe gig economy, and without the traditional employer-sponsored safety net that baby boomers took for granted. And within a decade, a majority of Americans won't even be traditional employees. A new...