The KGB's Poison Factory - Boris Volodarsky - Google Books

https://books.google.de/books?id=GFd-AwAAQBAJ&pg=PA36&dq=%22Wolfgang+Salus%22&hl=de&sa=X&ei=Ik6MVaPMBYKAU9uVgNgD&ved=0CDwQ6AEwBQ

In late November 2006 the world was shaken by the ruthless assassination in London of Alexander Litvinenko, a former Lt Col of the Russian security service (FSB). The murder was the most notorious crime committed by the Russian intelligence on foreign soil…