Carl Haber, 2013 MacArthur fellow. John D. and Catherine T. MacArthur Foundation hide caption

itoggle caption John D. and Catherine T. MacArthur Foundation

Jad Abumrad. Jason Andrew/Getty Images/Courtesy of the John D. & Catherine T. MacArthur Foundation hide caption

itoggle caption Jason Andrew/Getty Images/Courtesy of the John D. & Catherine T. MacArthur Foundation