Walls don’t solve problems. The United States military is involved in the construction of a 12-foot wall three miles long between Sunni and Shiite areas in Baghdad. The Iraqi prime minister has now asked for the construction to stop. Walls on the U.S. border with Mexico are thought to have a place in dealing with illegal immigration. And Israel seems to think a wall will help solve their Palestinian problem. Walls may help provide an illusion of greater security, but they do nothing to improve attitudes and relationships.