That was one of the biggest tragedies in recorded history. Do you even know what it did to the economy? It was like Black Monday on a 5x multiplier.
The World Trade Center, keyword TRADE. This isn't pokemon shit, this is real-world stocks and dollars. The portfolios were ruined.
The next time you laugh at that, think about the human beings that had their vacation bonuses decimated that day. Think about how the economic blow made countries like China catch up to us. Just think about that.
Just the amount of cancer that spiked over the years following the attack was horrible. : p
It's a consequence of war that I don't see discussed very much - Burning buildings, collapsing buildings, the chemicals left over from explosives, various fuels and other chemicals, all take a toll on the survivors of modern armed conflict and I rarely if ever see that accounted for. Like Fallujah, with the spike in birth defects after the battle in 2004. It doesn't have to just be from DU. There are many other toxic materials that are released in to the air when a building is destroyed.