History is full of examples of armed conflicts unleashed by religious, territorial, or ideological quests. The loss of life, bombings, looting, explosions, rape and torture are just some of the direct consequences of these wars. These conflicts have long lasting effects that are hard to erase. All over the world there are orphans, traumatized survivors, people who have lost everything, land littered with anti-personnel mines, and cities in ruins. The challenge, then, is to rebuild what has been destroyed. Architects of Change featured: * Belgian Bart Weetjens had a passion for rodents throughout his adolescence and he was also intrigued by weapons and joined the cadets. He soon developed a deep aversion to war and violence. When he learned that rats had once been trained to clear mines in some war-ravaged areas, he decided to develop this specialty. The organization APOPO was founded and its HeroRATS began their life-saving careers. * Karen Tse emigrated from Hong Kong to the U.S. with her family, and she occasionally heard about family members and friends who were unjustly imprisoned and tortured in Asia. She started a job in Asia working to reform the legal system, helping imprisoned people, and educating human rights defenders: prison guards, judges, police officers and office clerks. Later she founded the International Bridge to Justice, an organization dedicated to the eradication of torture and the protection of people who have been wrongly convicted. * Canadian Paul Hogan, a Toronto street artist, was one of the founders of the Spiral Garden art therapy program for children in hospitals. The organization sent him to Sri Lanka to assess the situation of children traumatized by war and natural disasters. He raised funds to establish the Butterfly Peace Garden whose objective was to provide social and psychological support to Sri Lankan children by expressing their artistic creativity.