I'm going to Greece in October and Medtronic have sent me this advice with my confirmation email of a spare pump. TBH, I'm a bit uncomfortable at chucking a £3k piece of medical equipment into my suitcase. I have loan pump insurance but even so I think it's more prudent that we carry them in our hand luggage. I have no idea what 'new security' system they are referring to. Do people out there think I should go back to them and question the sense of this? 'We ask that you do not break the seal on the replacement pump packaging and only open it in the event of an emergency. Important. Please be advised that due to the new security system at aiports, we would advise that the holiday loan pump be packed safely in the middle of your suitcase. Please note: If the seal is broken on the package on its return to Medtronic, the pump has to go through rigorous testing before being placed back in the loan pool for re-use and this may in turn cause un-nessary delays in holiday pumps orders being processed. However, should you choose to carry it in hand luggage, you may be asked to break the seal and insert the battery for testing.'