From a Christian point of view of course we do want a peaceful world, and I think September 11 did actually make people aware not only of vulnerability and how transitory life is, but there are forces of good and honor and justice which speak to us of God and his love for us.
“So much the worse, it may be, for a particular meeting: but the meeting is the individual, which on evolution principles, must be sacrificed for the development of the race.”