| FUCHS | Klaus ..... , physicist who passed atomic secrets to the Soviet Union (5) |
| ROSENBERG | Julius ... was executed for revealing atomic secrets to the Soviets |
| KLAUS | and 1ac, Physicist convicted in 1950 of passing information to the Soviet Union about the development of the atomic bomb in the US (5,5) |
| WATEN | Born in Russia and growing up in rural WA, whose account of a visit to the Soviet Union was From Odessa to Odessa: The Journey of an Australian Writer (1969) |
| GULAG | Name given to the Soviet Union's labour camps. (5) |
| PANAM | This airline began service to the Soviet Union, July 15, 1968 |
| NIELS | Bohr who advocated sharing atomic secrets |
| LOOSE | Like the lips of someone you probably shouldn't tell secrets to |
| KLAUSFUCHS | German-born physicist who, in the 1940s, gave secret American, British and Canadian atomic research information to the Soviet Union (5,5) |
| AGAIN | 1983 action film starring Sean Connery and Klaus Maria Brandauer (5,3,5,5) |
| NEVER | 1983 action film starring Sean Connery and Klaus Maria Brandauer (5,3,5,5) |
| CATAN | Board game designed by Klaus Teuber first published in 1995 (5) |
| SANTA | Character in "Elf," "Klaus," and "The Polar Express," among others |
| VENOM | Piers Haggard film starring Klaus Kinski and Oliver Reed (5) |
| LEAKER | One who discloses government secrets to the media |
| BITTE | Please, to Klaus |
| SHOES | What did German army inventor-doctor Klaus Maertens make a pair of in 1945 which would later become fashion items? (5) |
| ANGST | 1984 Klaus Schulze OST (5) |
| FIEND | "My Best ___" (Werner Herzog documentary about his relationship with Klaus Kinski) |
| GOLDMAN | Emma ____, anarchist deported by the USA to the Soviet Union in 1919 |