>If you have a confederate operating the machine, it would seem easier to arrange to pass through their security line than to use the knowledge to make an X-ray look-alike bomb-laden laptop.
If you want to simply put a bomb on a single given flight from that particular airport surely yes (and with the risk that your accomplice is caught in the ensuing investigations), but having a general method is - allow me - more elegant, you can in theory embark as many such devices on as many flight as you have suicide volunteers available, leaving from any airport at any date/time.
