If someone wants to blow themselves up and make casualties they can always succeed to matter what measures are in place. If not an airport then a metro station, train, even a bloody supermarket on a saturday morning has plenty of soft targets. For whatever reason anything associated with air travel gets more coverage so thats their primary target most of the time but plenty of other options. Nothing can be done about it.
Been to DME a few times, dont like it much as its too crowded. Am on a flight to SVO this afternoon though. No doubt security is going to be more annoying than usual.