I think the only boundaries are individual and personal. A writer should be free to write about anything he or she wants to, including the twin towers. I have made small references to 9/11 in my past two books. Michael Connelly
It was men who stopped slavery. It was men who ran up the stairs in the Twin Towers to rescue people. It was men who gave up their seats on the lifeboats of the Titanic. Men are made to take risks and live passionately on behalf of others. John Eldredge