Alan Thacker wants health coverage, but he can't get help in his home state of Georgia. Mary Moscarello Gutierrez no longer can afford insurance in New Jersey. Justin Thompson of Utah refuses to be forced into the president's health law. Millions of people in the United States will remain uninsured despite this week's final, frenzied push to sign them up under the health law. Their reasons are all over the map. Across the country, many of the uninsured just don't know much about the health overhaul and its March 31 deadline for enrolling in plans that can yield big discounts, researchers say.