A key official in the repair effort for HealthCare.gov said the site's error rate is now lower than 1 percent thanks to weeks' worth of special improvements were made. Former White House budget director Jeff Zients, who was enlisted to triage the website, touted the development as a sign of progress. But he refused to say whether the system had fully turned the corner since its botched rollout on Oct. 1. "It's likely that, as we move forward, we'll find additional glitches," Zients said on a call with reporters.
