Hence the headline "Controller's lunch break delayed landing" - She couldn't even use the apostrophe correctly whilst trying to senationalise a story....
anotherthing - Whilst I agree with everything you wrote regarding the poor journalisim, I think the use of the aposrophe in the headline was absolutely correct.
If she is assuming that there is one air traffic controller taking a lunch break, then the apostrophe has been correctly used to denote possession.