Pursuer is a US Air Force "government-off-the-shelf" system based on NASA's World Wind software package. Pursuer provides an intuitive interface for viewing several different layers of imagery, including pre-existing maps, reference imagery, and recently collected imagery, all placed within geographical context (similar to Google Earth).
Pursuer was developed by the Sensors Directorate of the Air Force Research Laboratory and is built upon the NetBeans Platform and NASA World Wind.
An interesting paragraph from the article referenced here (published May 1, 2012), about the relevance of the NetBeans Platform, is as follows:
While Pursuer has intrinsic support for many types of geodetic data, Pursuer was also designed to be modular,
making it easy to add new capabilities. Leveraging the power of the NetBeans Platform, Pursuer is designed as
a set of modules that each add capabilities to Pursuer. Therefore, to add a new capability to Pursuer, a new
module simply needs to be made and linked into the overall Pursuer platform. This simple model enabled us to
quickly add support for video frames within Pursuer, without worrying about the effect that our display has on
all of the other, pre-existing capabilities within Pursuer.