Under the moratorium, our laboratories have maintained our arsenal through the Stockpile Stewardship Program without underground nuclear testing, using techniques that are as successful as they are cutting edge.

WHITEHOUSE: VP Biden: The Path to Nuclear Security

Since 1992, in the place of testing, the United States has relied for "stockpile stewardship" on a host of computer-modeling, other simulation techniques and non-nuclear explosive tests that have provided insights into the performance of an aging arsenal.

CENTERFORSECURITYPOLICY: Are we serious about deterrence?

Conflict resolution didn't exist as a field when Dr. Spock reigned, but a generation of scholars has introduced new techniques to resolve showdowns, from nuclear-arms pacts to general strikes.

WSJ: Run Your Family Like a Business