Originally Posted by GUWonder

Profiling practiced by human beings en masse will be racist profiling (including tribalist profiling).

Common sense says that those who support racist/tribalist profiling are betraying not only American principles but also betraying the nation they claim to defend by ignoring the long-term, dangerous consequences of such attitudes (i.e., belief in racism/tribalism) in practice.

And cold-blooded murders operating out their political fanatacism in response to grievances, personal or otherwise, real or merely perceived/imagined, can often keep their cool. Any racist/tribalist "behavioral" profiling effort we get will have more false-positives than actual "catches". And such efforts create much bigger haystacks in the near-term; and those much bigger haystacks will mean that more terrorists will get through as a false-negative.