Watching the short "Camp Confidential: America's Secret Nazis" compiled from interviews with German speaking Jewish servicemen who worked at the camp outside Washington, DC.
At first, they were charged with interrogating Nazi prisoners about the V-2 program and helped target V-2 sites. Then, they were babysitters for Werhner von Braun and other rocket scientists.
Sometimes you need to pick a side, because not picking a side because you are okay either way is picking the worse side.