Former Sons of Iraq members work on a solar-powered device used to heat water while attending a Demobilization, Demilitarization and Reintegration Center course in western Adhamiyah, March 12. This machine will enable Iraqi families to have hot water in their homes. Photo by 1st Lt. Scott Lewis, 1st Cavalry Division Public Affairs. BAGHDAD — The classrooms bustle with activity as former Sons of Iraq members attend a Demobilization, Demilitarization and Reintegration (DDR) Center here to learn the skills necessary to make a living and support their families.This DDR Center in western Adhamiyah offers courses in surveying, electricity, mechanics, generator repair...