Tasteless or not, the free demo at least lets you observe the sightlines of this terrible day in history. If it causes someone to want to maybe pick up a book and read some real history - while taking a break from GTA or America's Army - then maybe it will not be a total loss.
As far as running over, bombing, or shooting "nameless, faceless" cardboard people as most games are setup to do - is this supposed to be a plus in their favor? "Oh, its okay... that dude doesn't have a name. Kill him. No harm done."
>>Now you too can experience the Eric Harris and Dylan >>Klebold simulation.
I guess you forgot what simulator they trained on.