> So how would a ban at flights originating at these airports prevent someone from exploiting this on a flight with a layover in this airport i.e while the plan

> So how would a ban at flights originating at these airports prevent someone from exploiting this on a flight with a layover in this airport i.e while the plane was in route to one of these 10 airports? Have you been to a middle east hub? There's a specific security section you have to go through to get to the US bound flights - it's a completely different screening process and would be quite easy easy for them to check for laptops and get them checked as luggage.