Earlier this summer, an American friend of mine was returning home from Tunisia, where he had been conducting PhD research.
Checking in for his connecting flight in Paris, he was put on the phone with a representative of US Customs and Border Protection for questioning - since we all know France shares a border with the United States.
Upon reaching America proper, my friend was hauled off for interrogation at the airport in New York on subjects ranging from the details of his Twitter account to the issue of whether or not anyone had suggested he join an armed group in Libya.
You can pick your own moral of the story. One possibility, perhaps, is that academics that insist on showing an interest in certain parts of the world should build detention time into their travel itineraries.
Another - more broadly applicable to the general global population - is that, no matter where you are, the US border can be brought to you. READ MORE AT AL JAZEERA ENGLISH.