If 'they' were trying to promote an attitude of support for the war on terror, it would be done through far more subtle means, such as through the programmes on TV, interviews, etc. This then primes your mind ready for it, so to speak.
I don't think shutting down airports would do the job...can you imagine it?
'Oi! Support this, or you can't go on holiday!' would evoke nothing more than a whole bunch of crabby tourists at best!
Sorry to be flippant, but I can't help it..
