As of Friday afternoon, it appeared that the firefighters were going to be on duty for 24 hours straight.

The sleeping man whom the firefighters went in to rescue was not there.

For months, senior officials believed that firefighters had gone no higher than about the 50th floor in each tower, well below most damage.

On reaching the floor, the firefighter goes onto the next event.

Now firefighters go home after work or straight to their second job.

Finally, three firefighters went back upstairs to hunt for him.

When it was over, the firefighters would go to another.

All three firefighters then went under together, joining forces to tug the door open.

He said the firefighters and the police went full steam with everything they had.

There were people in those buildings, and the firefighters went to get them.