It's the NT government, not the Pentagon
Population of this particular capital city is 100,000 ... and they brought some experts from interstate ASAP to help out with the restore.
There were indeed backups, but it was a little trickier than usual to implement them. He didn't just delete the public servant profiles. He deleted _all_ the logins... all of them... Admin, Support staff, Field Techs, and Government users etc etc
I don't know what they did in the end to fix this, but it was most likely either:
- hack open a domain server /
- rebuild a domain server
-- Then let the system repopulate the ID's downstream to other server locations
As for whether he's available for hire in the UK to help out with those troublesome civil servants, he may need to give 6-12 months notice! :)