09/10/2013
https://congress.gov...
"Adaptability, including flexibility is, in my opinion, the single most important metric for measuring the adequacy of U.S. forces for the deterrence of foes and the assurance of allies."
"The way to respond, in my view, is NOT to allocate additional resources to nuclear forces but, rather, to invest in advanced capabilities--such as ISR, EW, cyber, lasers, and space defense--that can e..."
"we may be self-deterred from responding in kind because we would have to go too high up the escalatory ladder"
"The principal role of U.S. nuclear weapons is to deter nuclear attacks against the United States and its allies."