FRONTLINE/World investigates the increasing power and influence of a new branch of the Taliban in Pakistan that is helping make the country one of the Obama administration’s top foreign policy concerns.

PBS' premier international newsmagazine returns with more "stories from a small planet," starting in Pakistan, where correspondent Sharmeen Obaid investigates the increasing power and influence of a new branch of the Taliban that is helping make the country one of the Obama administration's top foreign policy concerns. Also in this hour, correspondent Doug Rushkoff travels to the edge of the digital frontier - South Korea - for a look at a country that's embraced the wired world more thoroughly than any place on earth and is now potentially facing a new public health crisis: internet addiction.