I guess it all depends on which reports we read, who the authors are and what the motives are.
Some articles suggest profiling, behavioural or otherwise, is no better than a coin toss. That it doesn’t really work except, perhaps, for some highly trained experts who might have a slightly better than 50% chance.
Would it not depend on what you're looking for? If you are looking for a biosecurity concern (people bringing in seeds, fresh foods etc), probably profiling to some degree does help.