Update: Northrop Grumman Lays Off 173 At Fort Eustis Location August 1, 2010 No Comments on Update: Northrop Grumman Lays Off 173 At Fort Eustis Location Post View 1 After warning 52 employees in its Tampa location of potential layoffs, Northrop Grumman has announced 173 layoffs at its Herndon, Virginia headquarters. Northrop Grumman released…