Actually incorrect, the Saturn V rocket, which was engineered and built by Wernher von Braun and carried the Apollo astronauts to travel ti the moon, was the ONLY rocket ever built by man to have NEVER had a failure, we just saw a rocket blow up while being fueled last week, a rocket before that, on a mission to re-supply the ISS, blew up shortly after take-off, in fact, SEVERAL have, launched from here, and China as well!
Rocket science, as much as we'd like to think and believe that we are advanced in, has entered another stage which is still in its infancy.
Russia has lost TWICE as many rockets (and engineers) as the US.