We speak to three friends: Habab, a Muslim woman born in Sudan who was nearly detained after landing home at Dulles International Airport in Virginia this weekend; Rukmini Callimachi, our colleague who covers terrorism for The Times and immigrated to America at the age of 10; and Armida Lizarraga, a Peruvian who gives a history lesson on her country’s slide from democracy to dictatorship under Alberto Fujimori. Plus: our tips for how best to take a break this week.