Art in World War I trenches [audio 30min]

Historian David Snow joins an archaeolological dig in the WWI trenches in Thiepval Wood in France, the site of the worst fighting in the Battle of the Somme in 1916. It is dangerous ground. There were four million tons of shells brought here during the war, and one in three of those shells remains unexploded in this ground. This is a no man's land, an unofficial cemetery. In addition to putting together the story of the 36th Ulster Regiment stationed there, the team of volunteers, historians and archaeologists are hoping to find trench art and items that can be traced back to individuals.