Americans mark the 13th anniversary of the 9/11 attacks

House Speaker John Boehner (R-OH) (L-R), Senate Majority Leader Harry Reid (D-NV), Senate Minority Leader Mitch McConnell (R-KY) and House Minority Leader Nancy Pelosi (D-CA) stand for the National Anthem during a ceremony to present a Congressional Gold Medal in honor of the Fallen Heroes of 9/11 on Capitol Hill in Washington September 10, 2014. The three gold medals will be provided to the Flight 93 National Memorial in Pennsylvania, one going to the National September 11 Memorial and Museum in New York, and one going to the Pentagon Memorial at the Pentagon. [Photo/Agencies]