Does 9/11 really matter?

[Infinite]

I do tell people about 9/11 from time to time but do you guys participate in the protests and the activist groups and such? Lot of hostile responses. Kind of like the same kind of responses that I get when I try to tell most people about 9/11, just different motivations for the hostility. I guess a better question to ask myself would be, should I talk to people about serious stuff at all or am I sick of getting whined at?