Originally Posted by
cmdinnyc
It's been discussed in the past that the crew most likely had an agreed upon code to enter the cockpit if need be.
If true, that is not a secure lock. Any terrorist could force a Flight Attendant to give him the code. To be secure the door should have a manual lock along the lines of a dead-bolt.
It was also said that the FAs could speak to the ground if necessary as well in an emergency.
Likely another feature of the same inflight entertainment system?