Nice one Explorer, thanks for this enlightening post.
That of 9/11 is still the most heart breaking for me... A lot of people died at the twin tower/word trade center alone not to talk of people that died in the four plane crashes,the people that died at the pentagon, and other surrounding large buildings and structures within scenes of the incidents that must have been affected...Over 3000 + dead victims and over 6000+ Injured, and some people must have died from resulting injuries.
Since 2001 but it's still the single deadliest terrorist attack in human history till date. Very dispiriting, Really!