'It's ripped families apart': the border wall no one is talking about

Construction of a fence along the Afghanistan-Pakistan border, one of the world's most dangerous crossings, is splintering families while failing to halt the flow of smugglers and terrorists

Keramat used to visit her sons all the time, crossing the border between her home in Afghanistan's Kunar province into Pakistan, where they live and work.

But a fence built to mark a border between the two countries, which has not been recognised by the Afghan government, has made the 55-year-old's journey much longer, and more bureaucratic.