After three hours, they made a discovery: sunlight. Between occasional breaks in the smoke, they could see the sky from a hole on the side of the fourth-floor stairs.
Picciotto was the first out. He walked up the stairs and onto the top of Ground Zero. He was alone in an endless field of debris. Buildings burned in the distance.
Lim walked up the stairs and joined him. They stood in silence atop 16 acres of rubble.
"Chief," Lim said finally, "what do you think the chances of surviving something like this are?"
"One in a billion," Picciotto said. "One in a billion."
And this one brings tears to my eyes! god bless all who perished that day as well as these people who survived.