IMHO this comes down to specific types of PEOPLE not races or nations.

There always seem to be thugs of any colour whose aim in life is to foster bad feeling against others. Unfortunately, as we have seen on the 'Cat, one or two bad apples can spoil the whole barrel with negative and aggressive attitudes. When these bad apples get together and have access to weapons the whole situation becomes inflammatory. I don't pretend to understand the mindset of these people.

I would hazard a guess that a good proportion of the world's population would be quite content to live and let live with their neighbours. The problem is that the trouble makers so often can find a persuasive reason for this not to happen - look at the people in the UK and USA who still back the incursion into Iraq, the population of Germany in the 30's.......

I don't think that, given the present state of mankind, we will see any real improvment in the situation in our lifetime. All those of us who want peace can do is to pick up and move on from these kinds of attrocities and try to show, by example, how to live in relative peace with our neighbours.