-269.5 degrees Celsius
This seems to me like a very appropriate time to use Kelvin. For anyone interested, this is 3.65 degrees Kelvin.
Their concern: That someone may have copied it and could post it, WikiLeaks-style, on the Internet.
My understanding of WikiLeaks-style is redacting information which could put individuals in danger before posting it. In this case it seems like almost the entire database would be redacted. So, are they really talking about this being posted WikiLeaks style? I don't think so.
As far as the laws of mathematics refer to reality, they are not certain, and as far as they are certain, they do not refer to reality. -- Albert Einstein