Despite the work on the Redstone rocket, the 12 years from 1945 to 1957 were probably some of the most frustrating for von Braun and his colleagues. In the Soviet Union, Sergei Korolev and his team of scientists and engineers plowed ahead with several new rocket designs and the Sputnik program, while the American government was not very interested in von Braun's work or views and embarked only on a very modest rocket-building program. In the meantime, the press tended to dwell on von Braun's past as a member of the SS and the slave labor used to build his V-2 rockets.