ARLINGTON, Va. – The second-highest person at the National Nuclear Security Administration (NNSA) said Tuesday he is “absolutely considering contracting differently.” Scott Pappano, NNSA’s principal deputy administrator, gave a keynote on the second day of Exchange Monitor’s Nuclear Deterrence Summit. “The world I came from, you know, in shipbuilding, advanced procurement was very much a fee driven kind of contracting relationship, right?” Pappano said. “I'm a fan of how we do the M&O contracts right now as far as they…