The country's increasingly
stringent immigration policy has become an especially important issue for nascent businesses, which are often eager to harness overseas talent.
A similar phenomenon occurred after the attacks of September 11, 2001, when
stringent visa controls prevented some scientists from working in the U.S. Albert Teich monitored the impact of the travel restrictions on science for the American Association for the Advancement of Science, and now researches visas and
immigration policies at The George Washington University.