in northwestern pakistan, there are signs of ancient civilizations – far, far older than the british empire that once ruled the subcontinent. we’re visiting a green valley in taxila. it’s covered with the ruins of ancient cities, which are layered on top of even older cities. but we’ve come here to focus on india’s and pakistan’s youth. and amid the relics and ruins, we’ve found at least three layers of pakistan’s next generation. Listen to npr story here.