The Air Force is working with Northrop Grumman to determine whether technology developed as part of the canceled B-2 Defensive Management System Modernization program can be used for other Air Force applications. "The types of things B-2 DMS was looking at, which was how to penetrate when it's a difficult environment . . . that's a generic problem for the Air Force," service acquisition executive Will Roper told reporters Tuesday following a House Armed Services tactical air and land forces...