Raoul Wallenberg was a Swedish diplomat who, at the height of the Second World War, managed to save thousands of Jews from the Holocaust thanks to a mixture of bribery, diplomacy and sheer naked bravery. But, after the war ended, Wallenberg was arrested by Russian forces and taken into captivity, never to be seen again. Officially he died in 1947, but people have wondered ever since why Wallenberg was arrested and what really happened to him. I have to admit I hadn’t heard of him until I read this Yahoo news story, which takes a look at the Wallenberg Mystery, making a lot of his possible connection to a secret US organisation (perhaps too much) but explaining what we know happened and exploring some conjecture.