journalism that informs and inspires. sue and edgar wachenheim, iii. corporate funding is provided by mutual of america designing customized individual and group retirement products. that s why we are your retirement company. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, hari sreenivasan. sreenivasan: good evening, and thanks for joining us. secretary of state john kerry made a surprise visit to afghanistan today in an attempt to ease escalating political tensions there and prolong a power-sharing agreement he brokered two years ago. secretary kerry met with afghan president ashraf ghani, whose security forces control 70% of the country s territory but are fighting a resurgent taliban which was initially toppled by the u.s.-led invasion in 2001. kerry also met with ghani s political rival, abdullah