A new restriction on travel to the United States

If travelers from 10 Middle-East and North-African airports are confused, they're not the only ones. The Department of Homeland Security has issued a new ban on electronic devices to protect against what it calls a "long time threat." For nine foreign airlines flying from the Middle-East and North Africa direct to the US It's cellphones only: no laptops, tablets or other devices for passengers on their planes. But if the airlines have several days to put it into effect, how urgent is it? Travelers needing electronic devices will likely switch to alternate routes on US-based airlines — even though their service isn't as good. Is the ban really about terror or trade?