DALLAS, TX - SEPTEMBER 30: Traffic moves past Texas Health Presbyterian Hospital Dallas where a patient has been diagnosed with the Ebola virus on September 30, 2014 in Dallas, Texas. The patient who had recently traveled to Dallas from Liberia ...

DALLAS, TX - SEPTEMBER 30: Dr. Edward Goodman, epidemiologist at Texas Health Presbyterian Hospital Dallas, explains the precautions taken to prevent the spread of the Ebola virus during a media conference at Texas Health Presbyterian Hospital ...

HONG KONG - OCTOBER 01: Protesters sing songs and wave their cell phones in the air outside the Hong Kong Government Complex on October 1, 2014 in Hong Kong, Hong Kong. Thousands of pro democracy supporters continue to occupy the streets ...

HONG KONG - SEPTEMBER 30: Protesters sit on a roundabout outside of Hong Kong Government Complex on September 30, 2014 in Hong Kong. Thousands of pro democracy supporters continue to occupy the streets surrounding Hong Kong's Financial ...

NEW YORK, NY - SEPTEMBER 08: Marin Cilic of Croatia celebrates with the trophy after defeating Kei Nishikori of Japan to win the men's singles final match on Day fifteen of the 2014 US Open at the USTA Billie Jean King National Tennis Center on ...

CLAYTON, MO - AUGUST 20: Police guard the front of the Buzz Westfall Justice Center where a grand jury will begin looking at the circumstances surrounding the fatal police shooting of an unarmed teenager Michael Brown on August 19, 2014 in Clayton, ...

MONROVIA, LIBERIA - AUGUST 20: Members of Liberia's Ebola Task Force enforce a quarantine on the West Point slum on August 20, 2014 in Monrovia, Liberia. The military began enforcing a quarantine on West Point, a congested favela of 75,000, fearing ...

FERGUSON, MO - AUGUST 18: Police arrest a demonstrator protesting the killing of teenager Michael Brown on August 18, 2014 in Ferguson, Missouri. After a protest yesterday ended with a barrage of tear gas and gunfire, Missouri Governor Jay Nixon ...

DAEJEON, SOUTH KOREA - AUGUST 15: Faithful waits for the start of the Mass of Assumption of Mary to be conducted by Pope Francis at World Cup soccer stadium on August 15, 2014 in Daejeon, South Korea. Pope Francis is visiting South Korea from ...

TOKYO, JAPAN - AUGUST 15: Men dressed in World War II Japanese military uniform visit the Yasukuni Shrine on August 15, 2014 in Tokyo, Japan. Japan marks the 69th anniversary of the end of World War II in Asia today, following their surrender between ...

BEIJING, CHINA - AUGUST 14: A Chinese Catholic woman arranges religious items at a shop at the government sanctioned Xishiku Catholic Church on August 14, 2014 in Beijing, China. In his first visit to Asia, Pope Francis sent a rare message of goodwill to ...

BEIJING, CHINA - AUGUST 14: A Chinese Catholic woman arranges religious items at a shop at the government sanctioned Xishiku Catholic Church on August 14, 2014 in Beijing, China. In his first visit to Asia, Pope Francis sent a rare message of goodwill to ...

SEOUL, SOUTH KOREA - AUGUST 14: (SOUTH KOREA OUT) In this handout image provided by the Committee for the 2014 Papal Visit to Korea, South Koreans cheer as motorcades with Pope Francis onboard goes by after arriving on August 14, 2014 in ...

FERGUSON, MO - AUGUST 13: An Al Jazeera television crew, covering demonstrators protesting the shooting death of teenager Michael Brown, scramble for cover as police fire tear gas into their reporting position on August 13, 2014 in Ferguson, Missouri.

MONROVIA, LIBERIA - AUGUST 13: People attend an Evangelical Christian church service on August 13, 2014 in Monrovia, Liberia. A Delta Airlines flight had just brought the Ebola-flighting experimental ZMapp drug, which the Liberian government says will ...

MONROVIA, LIBERIA - AUGUST 13: Liberian Foreign Affairs Minister Augustine Ngafuan (L), brings boxes of an experimental Ebola-fighting drug ZMapp on a Delta Airlines flight from New York's JFK airport to Monrovia on August 13, 2014 in Monrovia, ...

SEOUL, SOUTH KOREA - AUGUST 13: Police officers stand guard as set up a platform in prepare for a special holy mass on August 13, 2014 in Seoul, South Korea. Pope Francis will be visiting from August 14 to August 18. This is the third trip abroad for the ...

GLASGOW, SCOTLAND - AUGUST 01: Silver medalist Kristian Thomas (L) of England poses with Gold medalist Nile Wilson (C) of England and Bronze medalist Kevin Lytwyn of Canada during the medal ceremony for the Men's Horizontal Bar Final at SSE ...

GLASGOW, SCOTLAND - JULY 29: Gold medallist Benjamin Proud of England watches as silver medallist Cameron McEvoy (L) of Australia shakes hands with bronze medallist James Magnussen of Australia during the medal ceremony for the Men's 50m ...

PERIGUEUX, FRANCE - JULY 26: Vincenzo Nibali of Italy and the Astana Pro Team races to fourth place in the individual time trial and defends the overall race leader's jersey during the twentieth stage of the 2014 Tour de France, a 54km individual time trial ...