This thread is great for watching college educated Americans pontificate with great moral indignation about things they know nothing about (but think they know everything about).
One could argue that it is wrong to visit the U.S. and I have advocated that people refrain from visiting the U.S. for similar reasons that I advocate that people not visit North Korea. However, the crimes of North Korea seem to be at quite a different level than the U.S.
That's debatable. It's all a matter of perspective and the difference here is that the people of NK are the ones that suffer mostly from the crimes of NK whereas the people in the US are definitely not the ones paying for the crimes perpetrated by the US.
This seems to be a recurring thing for communist nations (in so far as they are really communist, but that's another matter entirely), they are very hard on their population.