Premise: Operation Damocles was a covert campaign of the Israeli Mossad in August 1962 targeting German scientists and technicians, formerly employed in Nazi Germany's rocket program, who were developing rockets for Egypt at a military site known as Factory 333. According to Otto Joklik, an Austrian scientist involved with the project, the rockets being developed were programmed to use a radioactive waste.
Hypothesis: Operation Damocles took place in the summer.