21.   Michael Jackson was seen entering the building before Christmas -- minus his chimp, Bubbles.

22.   How can you stop undesirables from entering the building, do you believe you can stop them?

23.   Although hard copies of the canceled checks were not on a floor that was flooded, bank employees will not be able to enter the building until July.

24.   Although some public entrances were closed, people were allowed to enter the building.

25.   Americans are accustomed to entering a building in single file.

26.   Anthrax spores can survive for decades, and federal investigators now enter the building only in protective suits.

27.   Another potential problem has to do with the ability of tenants to communicate with the front desk and with visitors trying to enter the building.

28.   Another suggestion was requiring everyone entering a building to go through the checkpoint.

29.   Arriving passengers enter the building through the Immigration Hall on the top level.

30.   Approached by the plainclothes officers, Diallo turned and entered the building, he said, and did not keep his hands in view.