Nuclear-weapon-free World

The world total of some 50,000 nuclear warheads is beginning to fall off sharply. It should be well below 10,000 by the year 2000. Should the ultimate target be zero? The idea of a nuclear-weapon-free world (NWFW) was put back on the world agenda by President Gorbachev in 1986. President Reagan also had a vision of a world without nuclear weapons.