Summary: Ten years after the United States was unified in horror in the wake of the terrorist attack of 9/11, President Barack Obama, in solidarity with former president George W. Bush, honored the legacy of the victims and heroes of September 11. … One-year retrospective: One year ago today, on September 11, 2010, Aubrey Immelman noted that on a day of mourning for nearly 3,000 9/11 victims on the ninth anniversary of the terrorist attack of September 11, President Barack Obama called for national unity as the ‘ground zero mosque’ and Quran-burning controversies threatened to overshadow memorial events.