Backup Stack Exchange Tor site

It looks like we are going live with the Tor Stack Exchange Q&A site. There is going to be a lot of valuable thoughts in there, and it is probably a good idea to have our own backups in case Stack Exchange falls, fails or bails on the Tor project.

It should probably be done using a query run regularly against http://data.stackexchange.com/ or maybe using the data dumps http://www.clearbits.net/creators/146-stack-exchange-data-dump