Article Photos: Hope and heroism: Obama hails post-9/11 resilience 4/28

  President Barack Obama and first lady Michelle Obama board Air Force One before their departure from Andrews Air Force Base, Sunday, Sept, 11, 2011. Ten years after 9/11 terror attacks, Barack Obama and first lady Michelle Obama are traveling to New York and and Shanksville, Penn., to attend memorial services and then to the Pentagon later in the day.(AP Photo/Jose Luis Magana)