When it comes to health care, the rollout of the Affordable Care Act was supposed to be measured in the millions. That's how many people were expected to sign up for insurance to begin on Jan. 1.
But for both supporters and opponents of the law, there's one number that sticks out above all others. Six. That's how many people actually managed to enroll through the federal HealthCare.gov website the first day it opened, Oct. 1.