Group dynamics: Wagner in Africa

Its leader is in exile and its future is uncertain. But the Wagner Group will be loth to abandon the influence and the cashflow that its murky African operations bring. The striking down of affirmative-action university-admissions policies in America may counterintuitively spur more-progressive and more-efficient alternatives (9:56). And the reinvention (again) of a beloved Chinese sweet treat (17:08).

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