Vice President of the United States Joe Biden (left), Secretary of Defense Robert M. Gates (3rd from left) and Vice Chairman of the Joint Chiefs of Staff Gen. James E. Cartwright render honors as taps is played at a memorial wreath laying ceremony held at the Pentagon on May 5, 2011. Looking on, as Biden placed the wreath at the site where terrorist-piloted American Airlines Flight 77 impacted the building killing 184 people, are a group of first responders from the Arlington County Fire Department. Approximately 100 family members of those who perished in the attack were also in the audience.