1.   - Investing in new technologies to allow pilots to monitor passenger cabins.

2.   A nearby building contains the passenger cabin, with its rows of numbered seats, its galleys and lavatories all painstakingly put back together.

3.   A third camera is set up to record in the passenger cabin.

4.   A Valujet plane had an engine fire that burst into the passenger cabin last year on a runway in Atlanta.

5.   British officials say planes often survive explosions on board, especially ones in the passenger cabin.

6.   But if there were no hijackers in the cockpit and none visible in the passenger cabin, where were they?

7.   But with the later tests, the FBI chemists hit a forensic home run, finding conclusive evidence of PETN in wreckage from the passenger cabin.

8.   Chrysler built the Sebring on a four-door sedan platform and made the passenger cabin very roomy.

9.   Designers also reinforced its fuselage and added other features, including a new cockpit and passenger cabin.

10.   Delta Air Lines is testing video cameras in the passenger cabin.