1.   A reinforced door to the flight deck of a JetBlue airliner, on Monday.

2.   Most of the buildings housing art had barred windows, reinforced doors and alarm systems to forestall a forced entry.

3.   After that, she said, she put reinforced doors on the house.

4.   United chairman and chief executive Jack Creighton said the reinforced door helped keep Moreira from entering the cockpit.

5.   United Chairman and CEO Jack Creighton said in a statement that the reinforced door helped prevent Moreira from entering completely into the cockpit.

6.   United Chairman and CEO Jack Creighton said in a statement the reinforced door helped prevent Moreira from entering the cockpit.

7.   United Chairman and CEO Jack Creighton said in a statement the reinforced door helped prevent Moreira from entering completely into the cockpit.

8.   It is sealed on two sides by reinforced airtight doors and contains several small offices built round the central control area.

9.   Most of the residents seemed unaware of the existence of shelters bolstered by reinforced doors in some parts of Grozny designed to ward off nuclear attacks.