There's one long-term solution to the nuclear threat in the White House: disarmament.
As a Ph.D. at Princeton University, 28-year-old Patton studies arms control and disarmament issues with a particular focus on the role of virtual reality.
Whether discussing a flat-broke California or a world awash in nuclear weapons, the former secretary of state remains an optimist.
Analysis: Two longtime opponents of nuclear weapons reflect on heady times as the Obama administration puts disarmament back on the map.