"The military, and especially the Army, has a suicide problem. Since the start of the war in Afghanistan, more troops have died by their own hand than have been killed in combat there. And even as the war winds down, the numbers are rising--up 18% this year alone. This is a slow-motion tragedy not only for the troops but for all Americans. These are men and women who were willing to sacrifice their lives for the rest of us and are now taking their own lives. Our cover story, reported and written by Mark Thompson and Nancy Gibbs, follows two officers who died on March 21. .... We shine a light on this issue because a decade at war has strained our military in many ways, but none other with such tragic consequences."