With widespread delays holding up tens of thousands of foreign students worldwide from getting their visas, the “U.S. economy could suffer a loss of $7 billion,” a higher-education group warned recently. A precipitous drop in international enrollments wouldn’t just be bad for colleges, it would be a blow to the larger economy, NAFSA: Association of International Educators admonished. Not only would tuition not be paid, plane tickets wouldn’t be booked, apartments wouldn’t be rented, and dorm-room.