One reason is that pecking orders matter more than in most other rich countries: income distribution is very unequal and the unemployed, disaffected, ill-educated rump is comparatively large.

ECONOMIST: Public health

Eugenics, the pseudo-science of racial pecking orders, was so much the rage in academic circles from the late 19th century through the 1930s that even a towering liberal figure like Supreme Court Justice Oliver Wendell Holmes believed in it.

CENTERFORSECURITYPOLICY: Terror training grounds