“The same technology transforming our lives can solve the greatest problem of the 20th century. A security shield can one day render nuclear weapons obsolete and free mankind from the prison of nuclear terror. America met one historic challenge and went to the Moon. Now America must meet another: to make our strategic defense real for all the citizens of planet Earth.” RealProblemEarthAmericaChallengesTechnologyOur LivesMankindCenturySecurityPlanetsCitizensMetsOne DayMoonWeaponsPrisonTerrorSolveDefenseNuclearNuclear Weapons20th CenturyHistoricTransformingShieldsStrategicObsoletePlanet Earth Book:Public Papers of the Presidents of the United States: Ronald Reagan, 1986 Source: Public Papers of the Presidents of the United States: Ronald Reagan, 1986