Saul Griffith is an engineer and inventor. He has been principal investigator on projects for NASA, the US National Science Foundation and US Special Operations Command. He was awarded the MacArthur 'Genius' Grant in 2007. He is the founder of Rewiring America and Rewiring Australia and author of Electrify, The Big Switch and The Wires That Bind. His forthcoming book is The Electrification Handbook.