The cost of the building and equipment will be covered but cost for loss of data will probably not be covered. This should be down to NIS storing the backups off site. Also i'm not sure about the cost of downtime to customers, again this should be restored in minimal amount of time from Northgate's Disaster Recovery plan. Payment penalties from customers who have suffered system down time will probably also not be covered.
zx6r6 - How did you get into the area. It been cordoned off by the police and the building has been condemed, do you work for NIS?