China

Much of Taiwan's older generation sees itself as exiles from China. Younger people, including a metal vocalist-turned-legislator, identify the island as home — a free society independent from China.

Nearly all the fireworks Americans will use to celebrate this Fourth of July are imported from China. But the domestic fireworks business is still booming.

The immigrants were brought into the military — which offers a track to citizenship — because they provide hard-to-find skills and languages. A slow-moving vetting program had put their visas at risk.