It is awful that your friend still suffers the effects of the attacks. My fullest sympathy to her. I just cannot for the life of me understand why the wounded are never cited when speaking about the people affected that day. I lived in NW NJ when it happened and it was amazing that everyone knew someone who was in the WTC that day. It was a really sad time for me.
My stepson's best friend was on the 10th floor of the Merrill Lynch bldg. and had just sat down at his desk when it started. He looked up and saw 3 people holding hands falling and he knew it was time to get out of there fast.
We are in the Seattle area now and have neighbors who lived near the WTC that day and witnessed it and had to move from NYC because their children still wake up screaming with nightmares due to the event. It is hard for this couple as they are opera singers. They put their children's wellbeing before their careers. I admire them greatly.
Unfortunately the damage done by the attacks was massive and I amstill angry about it. On Sept 7 2001 I spent the day on the 88th floor of tower 2. I was on the phone with a person from the company I was consulting with (Morgan Stanley) at the time of the Second tower being hit. (there but for the grace of God). My friend did not make it out.
In any case your opera singer friends are to be commended.
If anyone had been celebrating the attack in front of me then I guess I would have had to plea temporary insanity for the killing.