I might have missed an explaination to this; what does the SCI in TS/SCI mean?

I agree with Serenitude, plus a thing to add; this is not a topic worth getting angry at each other over, much less banned. We're all friends here (well, most of us).

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This is no fantasy. No careless product of wild imagination. - Jor-El

Godspeed, John Glenn. - Scott Carpenter

And these atomic bombs that science burst upon the world that night were strange even to the men that used them.
- H.G Wells, The World Set Free

To the conspiracy crowd, radiation is a big Boogey Man that inspires terror and death in all who encounter it. - JayUtah