Millions of people could qualify for federal subsidies that will pay the entire monthly cost of some health care plans being offered in the online marketplaces set up under President Obama's health care law, a surprising figure that has not garnered much attention, in part because the zero-premium plans come with serious trade-offs. Three independent estimates by Wall Street analysts and a consulting firm say up to seven million people could qualify for the plans, but federal officials and insurers are reluctant to push them too hard because they are concerned about encouraging people to sign up for something that might ultimately not fit their needs.
