I must say that the many deaths in africa and many other parts of the world, I have a hard time to relate to, cause imo many of the pain and suffering in these parts of the world would be easier solved without the corrupt goverments that simply just try to pocket as much foreing aid as possible.
The palenstine and isrealic conlict - while severly tragic, is also imo mostly the result of goverments inablility to seak out peace.
But I bet if either one of the parties flew 2 planes into, say jerusalem and wasted 3000 civilians just to get attention, I think the reaction would be similar.
The IRA and ETA terrorisme, again while tragic, are on a much smaller scale, and all working to free a part of their nation (much as the palenstine) but in that concept much different from the terrorist attack against the "Free World" as an entity, as the attack on WTC was.
I will still mourn WTC more then others because imo it was an attack by mad men on the "Free Western World" so to speak.
Peace and stability in the world.
This stands as the day, imo, when peace suffered its biggest blow, since the Cuba Crisis was at its highest, and certainly since the end of the Cold War. A day when time stood still.
WTC should imo be mourned for excatly that reason, not for the casulties, but as a symbol for the free world to unite against terrorisme.