both rahma and dmc are pushing boundaries. rahma: i'm proud and happy.because i'm doing something to enlighten society. society knows that we can do this now. that we are integrated into society, that we belong to it, that onene chromosome dodoesn'te a difference. down syndrome makes us special. we will not be discouraged by that label. reporter: rahma khaled says her message is well received. she has already succeeded in convincing mothers of children with down syndrome that they are a gift from god. host: china seems set on expanding its global reach. beijing is investing more than 800 billion euros in new trade routes across asia, africa, and europe. it's an economic stimulus program on a vast scale, and one which is also, inevitably, altering the lives of people in local areas. one key route passes through pakistan's hunza valley. what does this mean for people there? how do they see their future along this new silk road? reporter: we are travelling along one e of the highehest rs in the world, the karakoram highy inin paktan. police are accompaining