HISTORY CLASS Defense Secretary Leon E. Panetta teaches a history class at John L. Chapin High School in El Paso, Texas, Jan. 13, 2012. Students of Kristina Mills’ 11th grade U.S. history class were treated to a candid discussion about national security and foreign threats. Panetta also took the opportunity to thanks students from military families based on nearby Fort Bliss for their sacrifices. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 839747-Q-YOS15-492.jpg Photo Gallery