AFGHANISTAN-PAKISTAN REVIEW Defense Secretary Robert M. Gates, left, and Vice President Joe Biden listen as President Barack Obama speaks on the Afghanistan-Pakistan Annual Review, describing the situation as "a very difficult endeavor" but saying there has been "significant progress," at the White House, Dec. 16, 2010. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 009917-X-QYW48-297.jpg Photo Gallery