Why are Google and Microsoft creating large centralized databases of people's medical histories?  Why are two Internet giants getting involved in medicine?  And what is Microsoft doing to protect patients' privacy?

Watch this intriguing interview with George Scriban, Product Manager for HealthVault, Microsoft's online service for personal health.  George explains why HealthVault is an natural extension of Microsoft's historical vision of empowering personal computing, and why Microsoft is in a unique position to protect and steward information like this.