NPR: 01-21-2015 Technology

Stories: 1) Sit. Stay. Call 911: FIDO Vest Gives Service Dogs An Upgrade 2) Remaking Vegas In A Tech Billionaire's Image: Will It Last? 3) Concept Cars, Once Outlandish, Now Vital To Auto Industry's Future 4) Sure You Can Track Your Health Data, But Can Your Doctor Use It? 5) 'Blackhat': A Classic Detective Story For A Brave New World 6) As Cities Push For Their Own Broadband, Cable Firms Say Not So Fast