The H-1B guest worker visa program has been coming under scrutiny lately.
The program is important to colleges both in terms of their ability to hire postdocs and other researchers from abroad and, more indirectly, in providing a pathway for the international students they recruit to work in the U.S. after graduation. Many in higher education see the existence of such pathways as important in making the U.S. an attractive destination for international students, especially since some countries that compete with the U.S. for top graduate student talent offer easier and more straightforward routesfrom student to permanent residency status.
But several national news articles have raised concerns about the use of the H-1B visa program to displace American workers in the corporate sector.
Read more at Inside Higher Ed: https://www.insidehighered.com/news/2015/10/22/h-1b-visa-program-comes-under-increasing-scrutiny