NASA was not started by rocket scientists, it employed rocket scientists; NASA was started by President Eisenhower. The preceding agency predates the Nazi movement. This claim
Is specious and misleading. Many of the rocket scientists working for NASA were nazis yes, but in what sense were they war criminals? Were they convicted as such? For what war crimes? Please cite evidence. Not every Nazi is a war criminal, and developing rockets is not a war crime.
Even if they were war criminals, why would that mean photos of the Earth are faked? This is the genetic fallacy in action.
On faked photos: NASA is very clear when photos are composites, but that does not help your case since a composite of a dozen photos of a round Earth means there are 12 photos that need to be falsified. Perhaps we can cut to the chase? Can you show that every photo of a round Earth is a fake? Only one photo if a round Earth is needed to falsify a flat Earth.
EDIT: Is there a source for the computer enhanced photos in the video you posted? I would like to look in to that.