WREATH CEREMONY A U.S. Marine lays a wreath at the Pentagon 9/11 observance ceremony, Sept. 11, 2011, honoring the 184 victims killed when American Airlines Flight 77 crashed into the Pentagon during a terrorist attack 10 years ago. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 596487-I-ICU80-207.jpg Photo Gallery