Trust, but verify Trust, but verify Trust, but verify (; "Doveryat, no proverit") is a Russian proverb. The phrase became well known in English when used by President Ronald Reagan on multiple occasions in the context of nuclear disarmament. Suzanne Massie, an American writer, met with President Ronald Reagan many times between 1984 and 1987. She taught him the Russian proverb "Doveryai, no proveryai" (; "Trust, but verify"), advising him that "The Russians like to talk in proverbs. It would be nice of you to know a few. You are an actor – you can learn them very quickly." The proverb was adopted
Effects of the Cold War particularly in the former Yugoslavia. In Eastern Europe, the end of the Cold War has ushered in an era of economic growth and a large increase in the number of liberal democracies, while in other parts of the world, such as Afghanistan, independence was accompanied by state failure. Many nuclear legacies can be identified from the Cold War, such as the availability of new technologies for nuclear power and energy, and the use of radiation for improving medical treatment and health. Environmental remediation, industrial production, research science, and technology development have all benefited from the carefully managed application of radiation