Profiling
Speaking as a customer, rather than an aviation professional, maybe this latest panic will at least move the relevant authorities toward an entirely rational - and I would say essential - procedure, namely passenger profiling. Which might be better described as risk assessment.
This is currently an area of absurd politically correct sensitivity which has the effect of making everyone unnecessarily more vulnerable. The same level of security resources, allocated where they're needed rather than blanketed across the board, would result in more effective controls. Wouldn't they?
Obviously there could still be attempts to circumvent such profiling however it seems unlikely that individuals falling outside the, ahem, target demographic, could be persuaded (or paid) to murder and die for a cause not their own.