For some of the 14 Penn students who spent two weeks helping at the Agahozo-Shalom Youth Village for Rwandans orphaned in the country&rsquo;s genocidal conflict, the experience brought back memories of personal tragedy. For all of them, it was a stark reminder of the horrors humans have inflicted on each other. But it was also an inspiring time, &ldquo;all about hope, all about the future.&rdquo; By Dave Zeitlin  