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One last tour here on the Death Star and I can retire. What was that noise?!
I can remember discussions about whether it was all that wise to try to contact other lifeforms... the assumption frequently seems to be that they'd all be wise and benificent... Imagine if the first contact had been with the Romulans or Klingons rather than the Vulcans... or worse yet, if the Tyranids stumbled upon the Earth.
(The preceeding can be considered an audition for "Big Bang Theory".)
Speaking of Star Trek, does the alien in this TZ ep look like the actor that played Apollo in one of the Star Trek: TOS eps?