Secret WW1 files online

UK National Archives marking centenary.

The UK's National Archives is making over 150 top secret MI5 files available online.

Included in the files is information about individuals and organisations involved in espionage as well as those who were under surveillance during World War One. 

The National Archives is marking the centenary of the WW1 with collections of photographs, letters and other materials.

Sources: The National Archives and Information World Review.