Yes but those dangers are the dangers of radioactive material - it's naturally 'hot', much of it also chemically toxic, etc. It's not core-at-criticality-that-murders-you-as-you-stand-next-to-it type of dangerous. I think that's still an essentially hypothetical danger of nuclear space junk.
As a general rule, it's not reactors functioning inside design parameters that are cause for concern, but rather failed reactors that have spew their guts and stopped working. Those are the reactors that will fuck you up.
