Summary: Stories: 1) One Child, One Laptop ... And Mixed Results In Peru 2) Software Calculates City-Specific Carbon Footprint 3) Do Chinese Tech Firms Pose U.S. Security Threat? 4) Now-Ubiquitous LED Lights Invented 50 Years Ago 5) Pentagon Revising Cyber Rules Of Engagement 6) The Secret To Making Ultrastrong 'Gorilla Glass'
