...the introduction of metal detectors in the '80 of last century pretty effective in reducing the number of plane hijackings... Still the most (only) effective piece of nowadays security theatre
Maybe, but they did not prevent the most destructive hijackings. Profiling (and that means close-up, personal and racially discriminating) is the way we have to go to reduce in-flight fiascoes. But Western politicians are as hypocritical and crafty as those who would wish us harm.
PM