IRBIL, Iraq (AP) — Under the Iraqi town of Sinjar, Islamic State group militants built a network of tunnels, complete with sleeping quarters, wired with electricity and fortified with sandbags. There, they had boxes of U.S.-made ammunition, medicines and copies of the Quran stashed on shelves.
The Associated Press obtained extensive video footage of the tunnels, which were uncovered by Kurdish forces that took the city in northwestern Iraq earlier this month after more than a year of IS rule.
Residential and economic mobility remain a part of life in the U.S., though a new study shows that the opportunities for both are more limited for some than in the past.
Economic mobility, or the ability to move beyond the economic circumstances of one's parents, has long been tied to residential mobility, or the ability to move to places with greater opportunity. But the author of the study, Scott Winship, a fellow at the Manhattan Institute, a research organization in New York, cautioned that the linkage doesn't always work.
