With USAF approval, Northrop resumes work on new ICBM silos

Northrop Grumman has resumed work on a major part of the Sentinel intercontinental ballistic missile program and has finalized a plan with the Air Force to restructure the over-budget and delayed effort, company executives said Tuesday.“In close partnership with the Air Force, we reached agreement on a restructure approach, which will lead to re-establishment of the program baseline. The work suspension on most aspects of the command-and-launch portion of the program was lifted, and we've