911 definately! I was in the middle of a nursing lab when someone came in and said that one of the towers was hit. I said "Osama Bin Ladin!!, that son of a ******!" No one took me seriously and everyone was trying to figure out if it was an accident. I knew NO pilot would make that mistake they'd go nose first to the ground before they let that happen. I was the only one in class who had served in the military and I knew I'd be getting the call to go. THEN the 2nd plane hit.... everyone turned to me at the same time and said "who did you say did this..." It was so eery... everyone left for the student center and noone could speak.
2) challenger disaster
3) VT masacre
4) (tie) dc sniper & columbia
I was in Iraq during Katrina and almost coming home, it didn't feel real at all otherwise that may have made the list.
