Netezza appliance has nothing to do with controlling drones. The tenuous link in the article is established by a failure to understand the intel use of the word targeting (gathering info on a target), as opposed to the aiming a missile military sense. Why would a drone use a data warehouse plugin to control anything operational? It wouldn't. Could a coordinate come out of the system- sure, but just a coordinate that someone else put in there.
Netezza sued IISi in 2009 for failing to deliver the port of their software. It looks like they didn't seem to get much traction with that, made some surprisingly clumsy document releases, showing where they laid down some stupid spy BS to try and push IISi to deliver or give up, or at least hand over the code so the customer could get it working. http://www.thestreet.com/print/story/10810646.html
Now, we're at the third stage, where the countersuit is claiming reverse engineering (considering that Netezza probably wrote the specs, hard to prove) and Netezza is getting bought by IBM, perhaps to get their legal team aimed at the issue...meanwhile, it gives everyone a good excuse to talk about drones.