We've all stood watching those geometric, metal panels accordion on their endless circuit of the baggage carousel, knowing that our bag was lost. You kick yourself for having expanded that little carry-on bag to fit the t-shirt you just had to have. Forced to check it, you've found yourself here. And your bag... who knows where? But now, with it's expanded Fly Delta mobile app utilizing RFID technology, Delta's addressed a major customer experience pain-point - so I can go back to packing extra underwear and checking my bag.