The president says \u201cthings are going to be different\u201d in Afghanistan: no more \u201cnation-building,\u201d just killing terrorists. But a closer examination suggests this new strategy looks a lot like the strategy of the last 16 years. Guest: Matt Rosenberg, who covered Afghanistan from 2008 to 2014. For more information on today\u2019s episode, visit nytimes.com/thedaily.