Did the Mutually Assured Destruction (MAD) doctrine make us more or less safe du

Did the Mutually Assured Destruction (MAD) doctrine make us more or less safe during the Cold War? What about today?
Support your analysis with research from at least two sources. Full citations are not required, but you must credit your sources in-text so your classmates and I can pinpoint which piece of research came from each source and so we can distinguish between your research and analysis. Please include a link to your sources at the bottom of your post so we can follow up with those sources if so inspired. Respond to at least two other students. Your responses should further our knowledge and understanding of the issues being discussed.