I have blogged about working on government contracts and the use case of multiple agencies needing different access to the same set of data. Legacy systems are complex and inefficient. SOA is the obvious modern day solution. To that end, Northrop Grumman has helped develop DCGS. The latest addition is DCGS-IC (intelligence community). DCGS-IC provides U.S. intelligence agencies and tactical military units with SSO access to a variety of data sources from various agencies. The production system was built in less than one year (based on a POC). It would takes years to develop this system on old technology.