Worst case scenerio? You could just claim the bag itself that does'nt have a ME tag.Call me a sceptic and although we havent had any issues with ME I would rather just claim it myself and KNOW it was there. This brings up any interesting point though ,luckily last time we had enough tags but if the new restrictions become permanent then one should be checking with ME or your TA to make sure enough tags are coming as ours arrived last year a little over a week before we left and we had none to spare.