A twisted piece of metal he picked up on the morning of 9/11 from the grounds of the Pentagon at the American Airlines Flight 77 crash site serves as a constant reminder to former Defense Secretary Donald H. Rumsfeld about the need for continued vigilance in standing up to terrorists. DOD photo by Donna Miles A twisted piece of metal he picked up on the morning of 9/11 from the grounds of the Pentagon at the American Airlines Flight 77 crash site serves as a constant reminder to former Defense Secretary Donald H. Rumsfeld about the need for continued vigilance in standing up to terrorists. DOD photo by Donna Miles SHARE: Download: Full Size (2.06 MB) Credit: VIRIN: 055147-P-RQH60-381.jpg Photo Gallery