US: Far from border, foreign students detainedThe Chronicle of Higher Education.
Although the Canadian border is nearly 160 kilometres (100 miles) behind them, motorists are queried about their citizenship and immigration status. Those who raise an agent's suspicions are sent to an adjacent weigh station for further questioning and, sometimes, searches. Any foreign students or scholars unable to produce all of their original documentation are detained and could be arrested.
Thus far, nobody from the University of Maine has actually been arrested at this ephemeral checkpoint, which usually appears near the start of the academic year. But elsewhere on the northern border, foreign students and scholars experience fear and uncertainty every time they leave campus, pick up a friend at the bus station, or board a domestic train or flight, even when they have all their documents with them.
Full report on The Chronicle of Higher Education site