Excerpt: Talk about a shock to the system. Has anyone bothered to notice the radical changes that John McCain and Sarah Palin are planning for the nation's health insurance system? These are changes that will set in motion nothing less than the dismantling of the employer-based coverage that protects most American families. A study coming out Tuesday from scholars at Columbia, Harvard, Purdue and Michigan projects that 20 million Americans who have employment-based health insurance would lose it under the McCain plan.  MORE >>