President Barack Obama will mark the 11th anniversary of the Sept. 11, 2001, terrorist attacks with a series of commemorations in and near Washington.
Obama and first lady Michelle Obama will gather Tuesday morning on the White House lawn for a moment of silence. Afterwards, they will attend a memorial at the Pentagon. In the afternoon, Obama will visit with wounded service members and their families at Walter Reed National Military Medical Center, the White House announced on Friday.
Vice President Joe Biden will be in Somerset County, Pa., for a service remembering the victims of Flight 93. The memorial in Shanksville honors the 40 passengers and crew members who died as some fought with the hijackers, preventing the plane from being diverted to crash in Washington.
In New York, Homeland Security Secretary Janet Napolitano will be at the World Trade Center Memorial.