U.S. Secretary of Health and Human Services Kathleen Sebelius was in Orlando on Tuesday meeting with community and health-care leaders about the new health-insurance exchange set to launch Oct. 1. At a meeting hosted by Orlando Mayor Buddy Dyer, Sebelius urged leaders to push the word out about how to access health insurance through the exchange and to prepare Central Florida for the open-enrollment period. "Just because people have the opportunity to get new coverage doesn't mean they know about it," the secretary said of her biggest challenge in rolling out the federal exchange, which 27 states, including Florida, have opted to use.