Intelligent vetting at our airports would begin with a way to distinguish between people who would never in a million years propose to do harm while in mid-air and those who just might.
It seems to me that a frequent flier with a valid set of credit cards, licenses and so forth, particularly of a certain age, would not be a likely AR (my instant acronym for Air Risk). The current security mode (the one we had up to yesterday, when draconian began) would be more than adequate to let this person through.
Parents or one parent and child or children would seem to me to pose little danger of AR. Couples or most groups might be similarly downgraded as potential ARs. Similarly people with disabilities.
Intelligent vetting is learning to distinguish risk categories not based on age, gender, race or nationality but on what we can deduce about past and future threats.
We can deduce that future AR candidates would be more than one to a plane and that they would be linked. This would create red flags when two apparently separate passengers from the same city tried to board a plan. Unfortunately, the dominant reality would place a burden on Islamic males and single male travellers in general.
The purpose of intelligent vetting would be to eliminate processes that are deemed needless in the case of many passengers. Intelligent vetting would give unlikely AR candidates the opportunity to carry on baggage. Many older travellers are highly dependent on things like available water, medications and the like. Other travellers want to be able to read.
I personally would have no objection to the wholesale banning of electronic devices, though the very purpose of many such devices relates precisely to being able to use them on planes. Without phones for example the passengers on flight 93 would not have known to act.
The answer to intelligent vetting is applying common sense to the process and perhaps creating a gateway for those willing to sacrifice some privacy for the purpose of being able to pass through check-in with less hassle than seems likely in the wake of current stepped-up fears.