The Pentagon is facing a $17 billion gap between the budget it initially sought for fiscal year 2017 and what it expects to receive under a new, two-year congressional budget deal, a sum $3 billion more than previously stated and attributed to President Obama's decision to extend the U.S. troop presence in Afghanistan beyond 2016. Prior to this weekend, Deputy Defense Secretary Bob Work had publicly discussed a $14 billion shortfall between the Defense Department's planned FY-17 request and what...