Angelina Jolie's movie, "In the Land of Blood and Honey," does not purport to tell us how conflicts like the one in Bosnia in the early 90's can be avoided, but it builds a mighty strong case for worrying about that question. It cries out for us to think about which present-day tensions or low-level conflicts are Bosnias-in-waiting, says the Institutes Center for International Development and Governance director Charles Cadwell in this commentary for the McClatchy News Services.