Forensic experts on Wednesday began exhuming a mass unmarked grave that could hold the remains of the acclaimed poet Federico Garcia Lorca, in a milestone in Spain's drive to address the legacy of its 1936-39 civil war. Working under a tent-like structure, the team started preliminary work staking out and cleaning surface soil at the site in southern Spain in preparation for digging in earnest, said Sara Gil, an archaeologist who is a member of the team. "The excavation work has begun. I cannot say anything else," Gil told reporters. Maribel Brenes, president of a local association of relatives of war-time missing, said the exhumation will get under way in earnest later in the week. It is not clear if the writer's remains will ever be identified, however, because his family opposes the exhumation. The goal of the digging is to find and identify the remains of several men who, like Garcia Lorca, were executed in the opening days of the civil war and are believed to be buried along with him in the same grave. [...]