Introduction

Klaus vuk has been in america for just over a month, but he has now made contact with his new handler, harry gold. Klaus doesn't know it, but he is also handling david greenglass, who is a machinist on the atomic bomb project. Years later, Gold and greenglass will testify against greenglass's own sister, ethel and her husband, julius rosenberg, for their atomic espionage. The stakes are high, and in the world of espionage, nobody can be fully trusted. This is the b b c.