As part of a power-sharing deal agreed back in 2014, Afghanistan's government was supposed to introduce several ambitious reforms before its two-year anniversary this Thursday. But simmering tensions between the country's President Ashraf Ghani and Chief Executive Abdullah Abdullah have derailed the plans and are threatening to tear the national unity government apart. As our team on the ground reports, the Taliban have made the most of the political instability. Programme prepared by Josh VARDEY and Aline SCHMIDT