http://www.spiegel.de/international/...502736,00.html
Gulp!
Only problem is: if there is a cataclysmic event on Earth, how should the few survivors then get up the moon and retrieve the backups?

Maybe in a far away future, for example the year 20001, they make it up there and find this black blocky thing that NASA and ESA once have buried up there...
we also need an insurance that safeguards against the knowledge covered by the backup is not the same knowledge that made man causing the cataclysmic event himself, else history would repeat itself in the future...

Or should the "manual for increasing global wamrting and wage thermonuclear war" be inlcuded in that library, for the sake of cultural completeness and politcally correct avoidance of supressing free speech and free expression of opinion?