623: La Escombrera: Colombia's Largest Urban Mass Grave

La Escombrera, a vast rubble pile overlooking Medellín, is considered to be Colombia's largest urban mass grave. Its excavation this year has unearthed the remains of people whose families have been searching for them for decades. Earlier this month, it was announced that the excavation there is being expanded. Some hope that what is found in that rubble will answer deeper questions - about how…