By: Neil H. Buchanan
Not long ago, traveling to the United States for business or academic purposes was a relatively simple matter for non-US citizens. Perhaps more accurately, despite all of the complexities involved in obtaining the relevant documents, bookings, funding, and so on, there was at least one question that was so basic and obvious that it simply never came up: Will I be turned away at the border, or even detained for days, weeks, or months?