Having just seen this news,i can fully understand the need to divert a/c elsewhere,(this supposedly is done by swanwick?),but can anyone enlighten me as to how ATC deal with the many a/c on the ground either taxying/holding for take-off etc,when something like this happens?? Do some volunteers stay behind??,or is it a n evacuation en masse and if so how do all the flight crews on these a/c get any relevant information??