Where is it?

It's being served from a new globally distributed server farm. Each new server was constructed from military grade hardened ICs. A server is small enough to fit into a briefcase, along with an energy source powered by a radioactive isotope. These servers connect to the Internet through classified rotating spread-spectrum carrier frequencies.

In the case of a global catastrophe, we have also been streaming the latest versions of the database out to the Mars Orbiter using the lastest Anderson-Klein compression algorithms.

That's classified.