For nearly half a century, the world's most powerful nuclear-armed countries have been locked in a military stalemate known as mutual assured destruction (MAD). By the early 1960s, the United States and the Soviet Union possessed such large, welldispersed nuclear arsenals that neither state could entirely destroy the other's nuclear forces in a ªrst strike. Whether the scenario was a preemptive strike during a crisis, or a bolt-from-the-blue surprise attack, the victim would always be able to retaliate and de…
scite is a Brooklyn-based startup that helps researchers better discover and evaluate scientific articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by researchers from dozens of countries and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.