Announcing Karn's sentence of 18 months, Judge Lucraft said he had considered whether it could be suspended.

BBC: Norwich Corwn Court

"You have to strengthen them all the way up to that last line of defense, " Karn said.

CNN: 10,000 airport security workers to get higher clearances

Judge Mark Lucraft said he had to consider the "hardship" prison would cause Karn's wife and two children.

BBC: Norwich Corwn Court

His wife had written to the court saying that if he were jailed, Karn would lose his job and the family could lose their home.

BBC: Norwich Corwn Court

Wireless remotes can easily get misplaced or spark family feuds that would frighten Richard Karn more than a visit from the ghost of Ray Combs.

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Mike Karn, security chairman for the Coalition of Airline Pilots Association, agreed that flight crews should receive "secret" information, saying terrorists have proved that they can still get on aircraft.

CNN: 10,000 airport security workers to get higher clearances