TapProfiling

All the talk this morning is about passenger profiling so it is a good time to review what it means and how effective it really is. This article from Bruce Schneier is a very good summary (it is not as long as it looks, 90% of the page is comments). The conclusion is that when done by trained intelligent people then it is very effective. When done by an automaton, either mechanical or human, then the false hit rate is so high that it discredits the whole thing. For some UK examples think of the poor reputation of Stop-and-Search and the Suss laws.

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