Preserving the past

Archaeologists are working round the clock in Turkey to save 60 ancient mosaics before they are flooded by a new dam. The two thousand year old Roman mosaics were found at Zeugma in the South East of the country. There are only weeks to go before the excavation will be washed away when the Berijit dam is put into place. As the BBC's Chris Morris reports from southeastern Turkey, the project has become the focus of international controversy.