PURPLE HEART U.S. Defense Secretary Chuck Hagel presents a purple heart to a soldier in Jalalabad, Afghanistan, March 9, 2013. Hagel traveled to Afghanistan on his first trip as the 24th defense secretary to visit U.S. troops, NATO leaders and Afghan counterparts. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 041960-R-UII44-082.jpg Photo Gallery