However sad and terrible this is, things with the same effects as this happens nearly every day in what we down-gradingly (I don't know if that's a word...) call the Third World.
Hurricanes, earthquakes, famine, drought, plague... You name it. Hundreds of millions of people in Africa get less than half of the food they need everyday. Some get nothing. But hey, those are just Africans and (insert the n-word here), aren't they...?
And let's not forget about that tribe in Russia that's so hard to pronounce, and that's a nightmare to spell... The Checheniyans. They have been occupied by Russia for more than two hundred years now, and a few years ago Russia declared war on them (not officially though) after some desperate actions made by them (that of course also were terrible). There's nothing left of their cities at all, everything has turned into gravel. Many people in Checheniya don't have a roof above their heads.
I do feel sorry for the victims and their relatives in London and 9/11, but use your heads, people...