I agree with SS and the sentiments about needing the flexibility to operate to your own limits during a 'sensible, operational task'. Is a routine AT flight back from a peaceful country in the Middle East the same thing? I understand that there is a worrying blur regarding adherence to ASOs between operational environments and routine AT flights in busy civilian domestic airspace. Once pax are out of an IMMEDIATE threat environment 'normal' crew duty rules should apply. It is not the responsibility of those AT crews getting people home to do so 'at all costs' just because we are under re-sourced.