Entrepreneurs, investors and data geeks descended on Washington, D.C., in pursuit of better ways to make health information useful for consumers. They urged bureaucrats to set the health data free.

Sarah Murnaghan, 10, has been moved to the adult waiting list for lung transplants. Murnaghan's parents are thrilled for their daughter, who's clinging to life. But a federal judge's ruling is also raising a number of concerns.

The cloud's vast computing power is making it easier and less expensive for companies and clinicians to discover new drugs and new medical treatments. Analyzing data that used to take years and tens of millions of dollars can now be done for a fraction of that amount.