Article Photos: Hope and heroism: Obama hails post-9/11 resilience 26/28

  President Barack Obama speaks at "A Concert for Hope" at the Kennedy Center in Washington, Sunday, Sept. 11, 2011, on the 10th anniversary of the Sept. 11 terrorist attacks. In front of the podium is a limestone angel which broke off the National Cathedral during last month's East coast earthquake. (AP Photo/Charles Dharapak)