MEMORIAL MOMENT Vice President Joe Biden talks with family members of those who lost their lives in the Sept. 11, 2001, terrorist attack on the Pentagon at the Pentagon Memorial, May 5, 2011. Biden visited the memorial to place a wreath to honor the 184 people killed when terrorists flew American Airlines Flight 77 into the side of the building. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 421801-X-GFI72-778.jpg Photo Gallery