Nukes: Good or Bad?

[Camaero]

Now before you say WTF? They are BAD! Think about it. With the invention of the A-bomb and after the nuclear arms race, there can never be another world war. There can never even be a war on a very large scale ever again. Because if there is, we are all whiped out. So of course, if some of the world leaders make poor choices then it could bring an age of nuclear waste and blah blah. Yet if everyone stays smart, and if they worry about their own skin, how can the great powers ever battle again? What do you guys think about this? It seems that the only way it can be done these days are by terrorists.

So how bout it? Will all the great powers having nukes bring the world a sort of doomsday machine in which everyone is afraid to attack eachother for fear of a nuclear fall out? Or will it bring the end as we know it?

Now please don't turn this into a Hiroshima thread. Leave that out of this. I am talking of the world at its current date.