The shifting regulations surrounding airport security are becoming increasingly frustrating for international travellers.Lke many, I have learnt the hard way what you can and cannot get on to today’s flights. I remember well that soul-destroying moment when my hip-flask of fine malt (reserved for my next overseas "emergency") was poured away before my eyes by one over-zealous Security Guard. It was “for the safety of all the passengers”, of course...So, I was amused by this recent report of how one Russian woman dealt with the news that she wasn’t allowed to take two bottles of spirits on board her flight home from China: