for the caravans ghar was a fabled stopping point marco polo praised the city's size and great beauty catch cars traders he wrote travelled the entire world to cross the karakoram mountains to the south and the t. on shan mountains into central asia cush car was always special and it still is. the region is part of china but the majority of people are weak or a muslim minority that is deeply mistrusted by beijing. in front of one of the gates to the old city some people are performing a traditional weaker dance it's popular with visitors from the rest of china. after the performance we approach one of the dancers and ask what he thinks of the city carter countries and all the ha ha ha ha ha. he tells us that life is good here but then we were interrupted a man comes over and stands in front of our camera to prevent us from talking. about the elderly man is intimidated by him and leaves. the cosmopolitan cashcard of old has become a city where mass surveillance is the norm our car is followed constantly. police and state security forces monitor our every step and. everyone we want to t

takur ghar. >> that was a helicopter with the rescue force. why are they going back into the same place where all this trouble had just occurred? and anybody told them? >> everybody told them. they knew they were going into a hornets nest, they did not have all the facts and that is the business of work there. it's an ugly, chaotic , unpleasant experience that you carry forthe rest of your life . this is a great example of that. so they're going for the same reason john chapman and the seals went back to get neil roberts which is a composite force. it was rangers, air force tax t, to air force specialists and another combat controller named gabebrown and their only information was you have to go rescue seals that are on a mountain . >> and they didn't know about chapman. >> nobody know about chapman. >> they didn't notice the seals hadleft . >> the seals were communicating and that's the breakdown that also happened and these things have cascading effects. so this is the force that's now coming up the mountain, 18 men including the aircrew whi