The Veteran's Administration, Medicare, and Medicaid make up the largest repository of public health data... in the world, and now it's being made available in appropriate forms for the use of patients and innovators alike. Todd Parks, CTO of the U.S. Department of Health and Human Services, wants to change the fee structure of healthcare from "Fee for Service" to something more efficient, and he's freeing up information on public health so everyone can see and help design better health systems.