Not so simple
because your article also points out the other necessary ingredient...which is an intelligent set of screeners and a process that does stray from the profile often enough to make it less evident. Its essentially a combination of approaches.
And I'll take my chances on that 80 year old Wisconsin woman's son before I'll take a chance on an 18-26 yr old male smelling of flower water and being recently shaven.
In the meantime, we're all chatting about something that is irrelevent...because it is highly unlikely that this plot will be repeated, ever...basically due to the door reinforcements making it near impossible for a small group of people to gain control of the aircraft.
Bombs are the possibility now...and THAT we should be able to catch with current tech...but since we all think $99 round trip is a God-given right...its likely we won't see that tech fully deployed anytime soon.
