Joan Rohlfing is President and Chief Operating Officer of the Nuclear Threat Initiative. -promoted by Laura Belin

By the time voters across the United States cast their ballots for president next November, it will have been 75 years since the first and only use of nuclear weapons. Since 1945, through the decades-long Cold War and its aftermath, a strategy of deterrence helped prevent nuclear war between the United States and Russia, the world’s nuclear superpowers. Does that strategy still keep us safe?