I think it really depends on the outcome (whether there is a god or not). If there was no god people would value their lives more but if there is than people may just throw their lives away knowing there is an afterlife (depending on the circumstances of death and whether there are rules that have to be followed while youre alive that you have to follow to successfully enter the next phase in existance).

People fear death because they don't understand it and if there was no afterlife than people would fear it more. But ghost is right things would settle to an equilibrium but not before the vast array of turmoil surrounding this issue. I don't see the point in fearing death. If there is really nothing than it's not like we're going ton know about it anyway. But enough rambling, what youv got to keep in mind is that even though there might be an answer to the question (is there a god? etc) there are going to be many interpretations of that answer. I say some things are better left to when theyr meant to be known. There might be a reason why it's so difficult to obtain this answer

I think people are going to find reasons for war. There isnt any problems with religions just the people in them. I agree with creeper, people need something to belive in to give them piece of mind. Not everyone has the same pattern of thought and thats what ultimately decides the future of our civilisation, not the religions (although its a good excuse), not the weapons, but the people the thinking behind these powerful entities (whether it be the people in power of these entities or the public consensus)

All in all I belive everyone should chill out and be happy, but that's for the individual to decide...