Crowds of People Create Risk Shock

New in from the department of "Well, Duhh" the startling news that forcing crowds of people to huddle together in compact queueing systems for significant periods of time might actually create new security risks. Yup, the current airport security procedures do, indeed, mean that terrorists are unlikely to have the opportunity to kill themselves in a plane toilet with an explosion barely powerful to blow the doors off, thus meaning that dozens of passengers will have to use the other toilet for the rest of the flight (which, of course, will result in an emergency landing, oh the terror), but surely everyone realises that if you simply crack down on one (largely imaginary) threat you leave, or even create, many other gaps.