That's a misleading selective quotation: here's a fuller quote:
> When asked why this project is so important to him, he voiced the dominant perspective among weapon scientists at LLNL: He doesn't want nuclear weapons to be used and passionately believes the key to ensuring they aren't is to making sure the U.S. stockpile continues to be an effective deterrent.
> "We need to be able to validate our codes and trust that the answers that are being calculated are correct," Spriggs said. "The legacy that I'd like to leave behind is a set of benchmark data that can be used by future weapon physicists to make sure that our codes are correct so that the U.S. remains prepared."
Relevant SMBC: http://www.smbc-comics.com/comic/2010-04-15