Exhuming Spain's civil war mass graves
20 December 2010 Last updated at 11:13 GMT
Spain has spent much of the last decade re-examining the past, exhuming mass graves from its devastating civil war.
It is thought there are around 2,000 unmarked burial sites across the country, but only a fraction have been opened.
The government now provides some funds for the search, but the work is left to relatives and volunteers.
As Sarah Rainsford reports, for some people, time is running out.