Question: How many German scientists, engineers, and technicians, were recruited in post-Nazi Germany as a result of the clandestine operation where Arthur Rudolph became one of the main developers of the U.S. ?space program
Sentence (from "Arthur Rudolph"): Arthur Louis Hugo Rudolph (November 9, 1906 – January 1, 1996) was a German Nazi rocket engineer who was a leader of the effort to develop the V-2 rocket for Nazi Germany.
Relevant evidence: No