The sunrise is seen behind lower Manhattan during the 13th anniversary of the 9/11 attacks on the World Trade Center, from Jersey City, New Jersey, September 11, 2014 (Photo: Reuters)

A man places a wreath at the 9/11 memorial during the 13th anniversary of the 9/11 attacks on the World Trade Center, in Exchange Place, New Jersey, September 11, 2014 (Photo: Reuters)

Eileen Esquilin hugs her husband Joe Irizarry while mourning the loss of her brother Ruben Esquilin Jr during memorial observances held at the site of the World Trade Center in New York, September 11, 2014 (Photo: Reuters)

Wearing a Superman outfit, Larnell Maurice Perry Jr. is lifted in the air by U.S. President Barack Obama at a ceremony marking the 13th anniversary of the 9/11 attacks at the Pentagon in Washington September 11, 2014 (Photo: Reuters)

An aerial view taken from an Indian Air Force helicopter shows the flooded Srinagar city, September 11, 2014 (Photo: Reuters)

A rescue worker helps flood victims get into a boat at a flood area following heavy rain in Jhang, Punjab province September 11, 2014 (Photo: Reuters)

People wave “estelada” flags, that symbolizes Catalonia's independence, during a demonstration calling for the independence of Catalonia in Barcelona, Spain, Thursday, Sept 11, 2014 (Photo: AP)

A worker carries a basket of rocks as she walks along the hill in Kathmandu September 11, 2014 (Photo: Reuters)

A cow stands on Lag Bay beach, the island of Rum is seen in the background, on the island of Eigg, Inner Hebrides, Scotland (Photo: Reuters)

Michelle Wie, of the U.S., reacts as she plays on the 15th hole during the first round of the Evian Championship women's golf tournament in Evian, eastern France, Thursday, Sept. 11, 2014 (Photo: AP)