There is always justifications for racism. 3 people helping someone out before the U.S had even declared war on Japan doesn't really seem like a very good reason to intern native americans, does it?

Hindsight is always 20/20.

Yes, I'm able to say in perfect safety 70 years after the fact that it was a mistake. If I had been alive and asked on Dec 10, 1941 the same question, I doubt I'd give the same answer.

I understand where you're coming from, and I think that a lot of people would(and do) agree with you. But it's the same as standing up now and saying that the NSA spying on ordinary citizens is wrong. If it's wrong, it should be wrong, and nothing can justify it.

Ok, but the original question was not whether it was wrong, but rather was it "the only reason". Didn't mean to imply it was ever right.