In my very humble opinion and in an (unrealistic) ideal world there should be one ATPL globally recognized. I respect the fact that perhaps a local Air Law exam might be appropriate. The Emirates 777 captain landing @ LHR has broadly the same academic and operational background as the BA captain landing in Dubai. The whole licensing debacle surrounding EASA / UK licenses is mired in politics and probably seedy back room deals. It is beyond nonsensical to expect qualified and experienced crews to sit 14 exams in either direction. At great expense and time to the individual. Hopefully some sensible compromise can be achieved.