BAGRAM VISIT U.S. President Barack Obama addresses troops at Bagram Airfield during a surprise visit to Afghanistan, Dec. 3, 2010. The president visited the Bagram hospital and awarded five Purple Heart medals to wounded servicemembers there. He then met with a platoon of 101st Airborne troopers who lost six soldiers Nov. 29 when an Afghan Border Police trainee opened fire on them. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 412159-S-JTW23-944.jpg Photo Gallery