7M enrolled doesn't guarantee health law's success

Seven million people signed up, so there is an appetite for President Barack Obama's health care law, but that doesn't guarantee success for the country's newest social program Big challenges are lurking for the next enrollment season, which starts Nov. 15. Chief among them are keeping premiums and other consumer costs in check, and overhauling an enrollment process that was advertised as customer-friendly but turned out to be an ordeal. ''They have demonstrated the law can work, but we are a ways off from being able to judge its success,'' said Larry Levitt, an expert on health insurance markets at the nonpartisan Kaiser Family Foundation.