The 25th anniversary of the 9/11 attacks on the World Trade Center, Pentagon, and Flight 93 is being commemorated with various events and tributes. These include memorial runs, film screenings, and educational programs, as well as a cross-country tour and a steel beam being carried across America to honor the victims. Some outlets are also noting that a significant portion of the US population does not remember the 9/11 attacks, which is being discussed as a concern.