ພິທີ ລະນຶກເຖິງ ວັນທີ 11 ກັນຍາ

President Barack Obama bows his head during a moment of silence at the Pentagon during a ceremony to mark the 13th anniversary of the 9/11 attacks, Sept. 11, 2014.

໑ President Barack Obama bows his head during a moment of silence at the Pentagon during a ceremony to mark the 13th anniversary of the 9/11 attacks, Sept. 11, 2014.

President Barack Obama, First Lady Michelle Obama, Vice President Joe Biden, and others observe a moment of silence to mark the 13th anniversary of the 9/11 attacks, on the South Lawn of the White House, in Washington, Sept. 11, 2014.

໒ President Barack Obama, First Lady Michelle Obama, Vice President Joe Biden, and others observe a moment of silence to mark the 13th anniversary of the 9/11 attacks, on the South Lawn of the White House, in Washington, Sept. 11, 2014.

President Barack Obama and First Lady Michelle Obama observe a moment of silence on the 13th anniversary of the 9/11 attacks at the White House, in Washington, Sept. 11, 2014.

໓ President Barack Obama and First Lady Michelle Obama observe a moment of silence on the 13th anniversary of the 9/11 attacks at the White House, in Washington, Sept. 11, 2014.

Hattie Wilson places her hand over her heart during the singing of the National Anthem as she mourns her nephew Det. Joseph Seabrook during memorial observances held at the site of the World Trade Center in New York, Sept. 11, 2014.

໔ Hattie Wilson places her hand over her heart during the singing of the National Anthem as she mourns her nephew Det. Joseph Seabrook during memorial observances held at the site of the World Trade Center in New York, Sept. 11, 2014.