It's not quite that straightforward: through exploitation of a bureaucratic loophole, they managed to enter the DPRK through a border that's supposed to be clos

It's not quite that straightforward: through exploitation of a bureaucratic loophole, they managed to enter the DPRK through a border that's supposed to be closed to foreigners and had quite a bit of time essentially unsupervised (although most of it was on a train).