I don't understand why people care about some of the so called plot holes. To me, the time Collinson took to get to Afghanistan makes no difference to anything that made the story work. The story is someone's fantasy and if the writer had decided to use made up countries and Collinson had travelled from a country 2 hours away, what difference would that have made to anything. i don't want to waste critical story time on the logistics that might have been involved in real life to make it happen, most of them boring to watch in all probability.