Unless political stability is restored in Zimbabwe and its refugees go home, all efforts to control AIDS in southern Africa may be worthless.

What we need to do now is to create more openings for high-skill immigrants while reducing the number of slots for extended family reunification for low-skill immigrants, and Congress (though no the Obama administration) seems to be taking some steps in that direction. The Economist, while not addressing low-skill immigration, seems to be taking a similar view.

The failure of Kurdish leaders to fulfill their diplomatic agenda extends beyond the latest Turkish incursion. Turkey's occupations, however, provide the Kurdistan Regional Government with an opportunity.

Transparency matters. Regardless of the mansion's ownership, if President Barzani is sincere about combating corruption, he should require that every official serving in his government detail their property holdings and business interests, not only in Iraqi Kurdistan, but also abroad.

The more historically isolated a population is, whether geographically or culturally,the more distinct their genetic makeup becomes.

Entine traces the genetic history of people of the Jewish faith.

The diaspora of Zimbabweans into neighboring states is worsening the AIDS crisis in southern Africa.