Was talking to a friend of mine the other night, she had just returned from Paris, when she got on flight two gentlemen got on with very large hold-alls, one so big it was on wheels, cabin crew said not acceptable but these two gentlemen claimed diplomatic immunity and had obviously got through all security with this disclaimer. Pilot came out and handled situation but it took an hour or so for the two men to eventually leave Aer Lingus flight with their bags. This seems bizarre in the extreme, could it be true that diplomatic immunity exists on flights? My friend's point was that at least the bags were big therefore attention was drawn to them but what if they were carry on bags and had got through 'cause of diplomatic immunity.