U.S. President Barack Obama and former President Bill Clinton walk past the Rose Garden to host an event marking the 20th anniversary of the national service program AmeriCorps at the White House in Washington September 12, 2014. In 1993, Clinton signed the bill that created AmeriCorps.

Kevin Lamarque/Reuters

U.S. President Barack Obama and former President Bill Clinton walk past the Rose Garden to host an event marking the 20th anniversary of the national service program AmeriCorps at the White House in Washington

Members of the The Fort McHenry Guard Field Musicians perform at the base of the Battle Monument during the Star Spangled Spectacular September 12, 2014 in Baltimore, Maryland. Celebrating the 200th anniversary of the United States' national anthem, Baltimore's Inner Harbor will host tall ships, fireworks displays, concerts, historic tours and other events. The anthem's lyrics come from 'Defence of Fort M'Henry,' a poem written in 1814 by Francis Scott Key after he witnessed the bombardment of Fort McHenry by British ships during the War of 1812.

Chip Somodevilla/Getty Images

Members of the The Fort McHenry Guard Field Musicians perform at the base of the Battle Monument during the Star Spangled Spectacular on Friday in Baltimore, Maryland. Celebrating the 200th anniversary of the United States’ national anthem, Baltimore’s Inner Harbor will host tall ships, fireworks displays, concerts, historic tours and other events

Flood victims watch from the windows of a hotel as Kashmiri volunteers try to get relief material across to them in the city center of Srinagar, India, Friday, Sept. 12, 2014.  Flash floods have killed hundreds, washed away crops, damaged tens of thousands of homes and affected over a million people since Sept. 3, when heavy monsoon rains lashed Pakistan's eastern Punjab province and the Kashmir region, claimed by both India and Pakistan.

Altaf Qadri/AP

Flood victims watch from the windows of a hotel as Kashmiri volunteers try to get relief material across to them in the city centre of Srinagar, India

Models present creations from Devota & Lomba's Spring/Summer 2015 collection during the Mercedes-Benz Fashion Week in Madrid

Susana Vera/Reuters

Models present creations from Devota & Lomba’s Spring/Summer 2015 collection during the Mercedes-Benz Fashion Week in Madrid

A woman sells a portrait of China's late chairman Mao Zedong at a busy street in Shanghai September 12, 2014.

Carlos Barria/Reuters

A woman sells a portrait of China’s late chairman Mao Zedong at a busy street in Shanghai

A long exposure photo shows smoke rising as lava flows from the crater of Mount Slamet volcano before dawn, as seen from Brebes town in Indonesia's Central Java province on September 12, 2014. Indonesian authorities have put the Mount Slamet volcano on the second-highest alert level after it erupted 38 times on September 11, spewing lava some 1500 metres (5,000 feet) into the air. Authorities warned residents to remain outside a four-kilometre radius of the volcano.

AFP

Smoke rises as lava flows from the crater of Mount Slamet volcano, as seen before dawn from Brebes town in Indonesia‘s Central Java province on Friday

A Ukrainian serviceman is seen in a military camp in Volnovaha town, some 60 km from Donetsk, Ukraine, 11 September 2014. New EU sanctions against Russia are to come into effect on 12 September, but will be reviewed in light of progress following a ceasefire deal in eastern Ukraine, the EU said on 11 September. The agreement signed in Minsk, Belarus on 05 September between the Ukrainian government and pro-Russian separatists includes a ceasefire, a special political status for separatist-controlled areas and a prisoner exchange. The ceasefire was largely holding, although the government in Kiev again accused the separatists of violations.

Roman Pilipey/EPA

A Ukrainian serviceman is seen in a military camp in Volnovaha town, some 60 km from Donetsk, Ukraine. New EU sanctions against Russia are to come into effect on Friday

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

Charles Dharapak/AP

President Barack Obama, first lady Michelle Obama, Vice President Joe Biden, and others, stand on the South Lawn of the White House in Washington on Thursday, as they observe a moment of silence to mark the 13th anniversary of the 9/11 attacks

Olympic and Paralympic track star Oscar Pistorius reacts as he listens to Judge Thokozile Masipa's judgement at the North Gauteng High Court in Pretoria...Olympic and Paralympic track star Oscar Pistorius reacts as he listens to Judge Thokozile Masipa's judgement at the North Gauteng High Court in Pretoria, September 11, 2014. A South African judge cleared Oscar Pistorius of all murder charges on Thursday, saying prosecutors had failed to prove the Olympic and Paralympic track star intended to kill his girlfriend or an imagined intruder on Valentine's Day last year.

Kim Ludbrook/Reuters

Olympic and Paralympic track star Oscar Pistorius reacts as he listens to Judge Thokozile Masipa’s judgement at the North Gauteng High Court in Pretoria. A South African judge cleared Oscar Pistorius of all murder charges on Thursday and will await the verdict on culpable homicide

People stand on a balcony decorated with Catalonia flags in Barcelona, Spain, Thursday, Sept 11, 2014. A week before Scotland votes on whether to break away from the United Kingdom, separatists in northeastern Spain were trying to convince hundreds of thousands to protest across Catalonia to demand a secession sentiment vote that the central government in Madrid insists would be illegal.

Emilio Morenatti/AP

People stand on a balcony decorated with Catalonia flags in Barcelona, Spain. A week before Scotland votes on whether to break away from the United Kingdom, separatists in northeastern Spain were trying to convince hundreds of thousands to protest across Catalonia to demand a secession sentiment vote