Research For Everyone, Episode 4: How can lost writing be made visible again?

How can lost writing be made visible again, and what does recovery mean for society and research?
In episode 4, Ivan Chevchuk and Kyle Ann Huskin of the Understanding Written Artifacts cluster of excellence show the techniques used to make lost or erased writings legible again.
The two show how these techniques are used for Plato's writings as well as for World War 2 diaries.