As for total disarmament, there are almost 50,000 nuclear weapons in the world today; even if they were banned, not all would be destroyed.
My guess is that nuclear weapons will be used sometime in the next hundred years, but that their use is much more likely to be small and limited than widespread and unconstrained.
Nuclear weapons are intrinsically neither moral nor immoral, though they are more prone to immoral use than most weapons.
A total nuclear freeze is counterproductive - especially now, when technology is rapidly changing and the Soviets have some important strategic advantages.
Hopefully, nations will refuse to accept a situation in which nuclear accidents actually do occur, and, if at all possible, they will do something to correct a system which makes them likely.
In a world which is armed to its teeth with nuclear weapons, every quarrel or difference of opinion may lead to violence of a kind quite different from what is possible today.