Martin Kobler, United Nations Special Representative and Head of the U.N. Support Mission in Libya, speaks during an interview with Reuters in Tunis, Tunisia, April 6, 2016. REUTERS/Zoubeir Souissi 

Martin Kobler, United Nations Special Representative and Head of the U.N. Support Mission in Libya, speaks during an interview with Reuters in Tunis, Tunisia, April 6, 2016. REUTERS/Zoubeir Souissi 

Martin Kobler, United Nations Special Representative and Head of the U.N. Support Mission in Libya, gestures during an interview with Reuters in Tunis, Tunisia, April 6, 2016. REUTERS/Zoubeir Souissi 

Martin Kobler, United Nations Special Representative and Head of the U.N. Support Mission in Libya, speaks during an interview with Reuters in Tunis, Tunisia, April 6, 2016. REUTERS/Zoubeir Souissi 

Martin Kobler, United Nations Special Representative and Head of the U.N. Support Mission in Libya, speaks during an interview with Reuters in Tunis, Tunisia, April 6, 2016. REUTERS/Zoubeir Souissi 

Antonio Garcia, head of the delegation of National Liberation Army (ELN) for formal peace talks with Colombian government, talks to the media during a news conference in Caracas, March 30, 2016. REUTERS/Marco Bello 

Antonio Garcia, head of the delegation of National Liberation Army (ELN) for formal peace talks with Colombian government, talks to the media during a news conference in Caracas, March 30, 2016. REUTERS/Marco Bello 

Antonio Garcia (L) and Pablo Beltran, representatives of the delegation of National Liberation Army (ELN) for formal peace talks with Colombian government, attend a news conference in Caracas, March 30, 2016. The banner reads "Agreement dialogues for peace of Colombia between the national government and the National Liberation Army". REUTERS/Marco Bello 

Pablo Beltran, representative of the delegation of National Liberation Army (ELN) for formal peace talks with Colombian government, talks to the media during a news conference in Caracas, March 30, 2016. REUTERS/Marco Bello 

Antonio Garcia, head of the delegation of National Liberation Army (ELN) for formal peace talks with Colombian government, talks to the media during a news conference in Caracas, March 30, 2016. REUTERS/Marco Bello 

Antonio Garcia (L) and Pablo Beltran, representatives of the delegation of National Liberation Army (ELN) for formal peace talks with Colombian government, attend a news conference in Caracas, March 30, 2016. REUTERS/Marco Bello 

Antonio Garcia (L) and Pablo Beltran, representatives of the delegation of National Liberation Army (ELN) for formal peace talks with Colombian government, attend a news conference in Caracas, March 30, 2016. REUTERS/Marco Bello TPX IMAGES OF THE DAY

Delegates raise their hands to vote at the Labour Party conference at Brighton in southern England September 27, 2015. REUTERS/Toby Melville 

Green party representatives collect donations for refugees during an extraordinary session of the parliament on migration policy in Vienna, Austria, September 24, 2015. REUTERS/Heinz-Peter Bader 

A man walks past an Aga oven at the Aga Festival 2015 in London, Britain September 20, 2015. The sale of the Aga Rangemaster oven maker to a U.S. owner with global ambitions caps the transformation of a quintessential English country brand created by some of the biggest names in global design, advertising - and espionage. Photograph taken September 20, 2015. REUTERS/Luke MacGregor 

The company logo is displayed on the door of an Aga oven at the Aga Festival 2015 in London, Britain September 20, 2015. The sale of the Aga Rangemaster oven maker to a U.S. owner with global ambitions caps the transformation of a quintessential English country brand created by some of the biggest names in global design, advertising - and espionage. Photograph taken September 20, 2015. REUTERS/Luke MacGregor 

Aga Chief Executive William McGrath speaks at the Aga Festival 2015 in London, Britain September 20, 2015. The sale of the Aga Rangemaster oven maker to a U.S. owner with global ambitions caps the transformation of a quintessential English country brand created by some of the biggest names in global design, advertising - and espionage. Photograph taken September 20, 2015. REUTERS/Luke MacGregor 

A woman walks past an Aga oven at the Aga Festival 2015 in London, Britain September 20, 2015. The sale of the Aga Rangemaster oven maker to a U.S. owner with global ambitions caps the transformation of a quintessential English country brand created by some of the biggest names in global design, advertising - and espionage. Photograph taken September 20, 2015. REUTERS/Luke MacGregor 

People discuss Aga ovens at the Aga Festival 2015 in London, Britain September 20, 2015. The sale of the Aga Rangemaster oven maker to a U.S. owner with global ambitions caps the transformation of a quintessential English country brand created by some of the biggest names in global design, advertising - and espionage. Photograph taken September 20, 2015. REUTERS/Luke MacGregor 

Aga Chief Executive William McGrath speaks at the Aga Festival 2015 in London, Britain September 20, 2015. The sale of the Aga Rangemaster oven maker to a U.S. owner with global ambitions caps the transformation of a quintessential English country brand created by some of the biggest names in global design, advertising - and espionage. Photograph taken September 20, 2015. REUTERS/Luke MacGregor 

Aga Chief Executive William McGrath speaks at the Aga Festival 2015 in London, Britain September 20, 2015. The sale of the Aga Rangemaster oven maker to a U.S. owner with global ambitions caps the transformation of a quintessential English country brand created by some of the biggest names in global design, advertising - and espionage. Photograph taken September 20, 2015. REUTERS/Luke MacGregor 

U.S. House Democratic leaders Representative Steve Israel (D-NY) (from L-R), Representative Chris Van Hollen (D-MD), Representative James Clyburn (D-SC), House Minority Leader Nancy Pelosi (D-CA), Representative Steny Hoyer (D-MD), Representative Xavier Becerra (D-CA) and Representative Joe Crowley (D-NY) talk to reporters about their willingness to hold bipartisan budget negotiations with their Republican counterparts, at the U.S. Capitol in Washington September 8, 2015. The White House said on Tuesday the U.S. Congress would contribute to instability if it does not pass a budget. REUTERS/Jonathan Ernst 

U.S. House Minority Leader Nancy Pelosi (D-CA) is flanked by fellow Democratic leaders Representative James Clyburn (D-SC), Representative Steny Hoyer (D-MD) (3rd R), representative Xavier Becerra (D-CA) (2nd R) and Representative Joe Crowley (D-NY) (R) as she talks to reporters about their willingness to hold bipartisan budget negotiations with their Republican counterparts, at the U.S. Capitol in Washington September 8, 2015. The White House said on Tuesday the U.S. Congress would contribute to instability if it does not pass a budget. REUTERS/Jonathan Ernst 

U.S. House Minority Leader Nancy Pelosi (D-CA) (C) listens to comments by fellow Democratic leaders to reporters about their willingness to hold bipartisan budget negotiations with their Republican counterparts, at the U.S. Capitol in Washington September 8, 2015. The White House said on Tuesday the U.S. Congress would contribute to instability if it does not pass a budget. REUTERS/Jonathan Ernst 

U.S. House Minority Leader Nancy Pelosi (D-CA) is flanked by fellow Democratic leaders Representative James Clyburn (D-SC), Representative Steny Hoyer (D-MD) (3rd R), representative Xavier Becerra (D-CA) (2nd R) and Representative Joe Crowley (D-NY) (R) as she talks to reporters about their willingness to hold bipartisan budget negotiations with their Republican counterparts, at the U.S. Capitol in Washington September 8, 2015. The White House said on Tuesday the U.S. Congress would contribute to instability if it does not pass a budget. REUTERS/Jonathan Ernst 

Football - England - Stadio Olimpico Stadium Visit - Stadio Olimpico, Serravalle, San Marino - 4/9/15
England manager Roy Hodgson speaks to UEFA delegate during the stadium visit
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Myanmar's Information Minister Ye Htut (L) and Shwe Mann, speaker of Myanmar's parliament, arrive for Myanmar's top six-party talks at the Presidential palace in Naypyitaw April 10, 2015. Myanmar President Thein Sein sacked Shwe Mann as ruling party chairman this week because he supported controversial bills in parliament and had ties to rival party leaders, Ye Htut, who is also Thein Sein's spokesman, told Reuters in an interview on Saturday. Picture taken April 10. To match Interview MYANMAR-POLITICS/ REUTERS/Soe Zeya Tun 

Myanmar Information Minister Ye Htut speaks during the World Press Freedom Day at a hotel in Yangon May 3, 2015. Myanmar President Thein Sein sacked Shwe Mann as ruling party chairman this week because he supported controversial bills in parliament and had ties to rival party leaders, Ye Htut, who is also Thein Sein's spokesman, told Reuters in an interview on Saturday. Picture taken May 3. To match Interview MYANMAR-POLITICS/ REUTERS/Soe Zeya Tun 

Representatives from workers' unions and social movements waves the Brazil's President Dilma Rousseff during a conference in Brasilia August 13, 2015. REUTERS/Ueslei Marcelino 

Brazil's President Dilma Rousseff speaks during a conference with representatives from workers' unions and social movements, in Brasilia August 13, 2015. REUTERS/Ueslei Marcelino 

Brazil's President Dilma Rousseff is greeted by representatives from workers' unions and social movements during a conference in Brasilia August 13, 2015. REUTERS/Ueslei Marcelino 

U.S. Rep. Ileana Ros-Lehtinen (R-FL) speaks at a news conference at her office in Miami, Florida August 12, 2015. At right is U.S. Rep. Mario Diaz-Balart (R-FL) and standing behind Ros-Lehtinen is former U.S. Rep. Lincoln Diaz-Balart, brother of Mario. Ros-Lehtinen called the opening of a U.S. embassy in Cuba a "diplomatic charade rewarding the tyrannical Castro regime.", local media reported. REUTERS/Joe Skipper 

U.S. Rep. Ileana Ros-Lehtinen (R-FL) speaks at a news conference at her office in Miami, Florida August 12, 2015. At right is U.S. Rep. Mario Diaz-Balart (R-FL) and standing behind Ros-Lehtinen is former U.S. Rep. Lincoln Diaz-Balart, brother of Mario. Ros-Lehtinen called the opening of a U.S. embassy in Cuba a "diplomatic charade rewarding the tyrannical Castro regime.", local media reported. REUTERS/Joe Skipper 

U.S. Rep. Mario Diaz-Balart (R-FL) speaks at a news conference in Miami, Florida, August 12, 2015. U.S. Rep. Ileana Ros-Lehtinen looks on in center. She called the opening of a U.S. embassy in Cuba a "diplomatic charade rewarding the tyrannical Castro regime.", local media reported. REUTERS/Joe Skipper 

U.S. Rep. Ileana Ros-Lehtinen (R-FL) speaks at a news conference at her office in Miami, Florida August 12, 2015. Ros-Lehtinen called the opening of a U.S. embassy in Cuba a "diplomatic charade rewarding the tyrannical Castro regime.", local media reported. REUTERS/Joe Skipper 

U.S. Rep. Ileana Ros-Lehtinen (R-FL) speaks at a news conference at her office in Miami, Florida August 12, 2015. Ros-Lehtinen called the opening of a U.S. embassy in Cuba a "diplomatic charade rewarding the tyrannical Castro regime.", local media reported. REUTERS/Joe Skipper 

U.S. Rep. Ileana Ros-Lehtinen (R-FL) speaks at a news conference at her office in Miami, Florida August 12, 2015. Ros-Lehtinen called the opening of a U.S. embassy in Cuba a "diplomatic charade rewarding the tyrannical Castro regime.", local media reported. REUTERS/Joe Skipper 

U.S. Rep. Mario Diaz-Balart (R-FL) speaks at a news conference in Miami, Florida, August 12, 2015. U.S. Rep. Ileana Ros-Lehtinen (R-FL) is seen on the right. Ros-Lehtinen called the opening of a U.S. embassy in Cuba a "diplomatic charade rewarding the tyrannical Castro regime.", local media reported. REUTERS/Joe Skipper 

U.S. Rep. Ileana Ros-Lehtinen (R-FL) speaks at a news conference at her office in Miami, Florida August 12, 2015. At right is U.S. Rep. Mario Diaz-Balart (R-FL) and standing behind Ros-Lehtinen is former U.S. Rep. Lincoln Diaz-Balart, brother of Mario. Ros-Lehtinen called the opening of a U.S. embassy in Cuba a "diplomatic charade rewarding the tyrannical Castro regime.", local media reported. REUTERS/Joe Skipper 

Special Representative of the Secretary-General for Libya and Head of United Nations Support Mission in Libya (UNSMIL) Bernardino Leon (L) speaks to journalists at the Palais des Nations in Geneva, August 11, 2015. UN-sponsored peace talks on Libya are due to open in Geneva, chaired by Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Special Representative of the Secretary-General for Libya and Head of United Nations Support Mission in Libya (UNSMIL) Bernardino Leon speaks at the Palais des Nations in Geneva, August 11, 2015. UN-sponsored peace talks on Libya are due to open in Geneva, chaired by Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Special Representative of the Secretary-General for Libya and Head of United Nations Support Mission in Libya (UNSMIL) Bernardino Leon speaks at the Palais des Nations in Geneva, August 11, 2015. UN-sponsored peace talks on Libya are due to open in Geneva, chaired by Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Special Representative of the Secretary-General for Libya and Head of United Nations Support Mission in Libya (UNSMIL) Bernardino Leon speaks at the Palais des Nations in Geneva, August 11, 2015. UN-sponsored peace talks on Libya are due to open in Geneva, chaired by Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Special Representative of the Secretary-General for Libya and Head of United Nations Support Mission in Libya (UNSMIL) Bernardino Leon speaks at the Palais des Nations in Geneva, August 11, 2015. UN-sponsored peace talks on Libya are due to open in Geneva, chaired by Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Special Representative of the Secretary-General for Libya and Head of United Nations Support Mission in Libya (UNSMIL) Bernardino Leon speaks at the Palais des Nations in Geneva, August 11, 2015. UN-sponsored peace talks on Libya are due to open in Geneva, chaired by Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Special Representative of the Secretary-General for Libya and Head of United Nations Support Mission in Libya (UNSMIL) Bernardino Leon speaks at the Palais des Nations in Geneva, August 11, 2015. UN-sponsored peace talks on Libya are due to open in Geneva, chaired by Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Special Representative of the Secretary-General for Libya and Head of United Nations Support Mission in Libya (UNSMIL) Bernardino Leon arrives at the Palais des Nations in Geneva, August 11, 2015. UN-sponsored peace talks on Libya are due to open in Geneva, chaired by Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

The Libyan General National Congress (GNC) delegation arrives at the Palais des Nations in Geneva, Switzerland, August 11, 2015. UN-sponsored peace talks on Libya due to open in Geneva, chaired by Special Representative of the Secretary-General for Libya Bernardino Leon , with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Libyan Deputy President of the General National Congress (GNC) Saleh Al-Makzom looks on at the Palais des Nations in Geneva, Switzerland, August 11, 2015. UN-sponsored peace talks on Libya due to open in Geneva, chaired by Special Representative of the Secretary-General for Libya Bernardino Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Libyan Deputy President of the General National Congress (GNC) Saleh Al-Makzom (L) and member of GNC Salah Zein Al-Abden (R) arrive at the Palais des Nations in Geneva, Switzerland, August 11, 2015. UN-sponsored peace talks on Libya due to open in Geneva, chaired by Special Representative of the Secretary-General for Libya Bernardino Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Member of Libyan General National Congress Mohamed Ammazaid arrives at the Palais des Nations in Geneva, Switzerland, August 11, 2015. UN-sponsored peace talks on Libya due to open in Geneva, chaired by Special Representative of the Secretary-General for Libya Bernardino Leon, with warring parties in Libya and other parties to end the political and military conflict in Libya. REUTERS/Pierre Albouy 

Delegates attend the 22nd Southeast Asian Nations (ASEAN) Regional Forum during the 48th ASEAN foreign ministers meeting in Kuala Lumpur, Malaysia, August 6, 2015. REUTERS/Olivia Harris

South Korea's President Park Geun-hye delivers a speech at the presidential Blue House in Seoul August 6, 2015. Park called on Thursday for "major sugery" on the economy, which faces slowing growth and increasing challenges as she approaches the half-way point of her single five-year term. REUTERS/Ed Jones/Pool 

South Korea's President Park Geun-hye arrives to deliver a speech at the presidential Blue House in Seoul August 6, 2015. Park called on Thursday for "major sugery" on the economy, which faces slowing growth and increasing challenges as she approaches the half-way point of her single five-year term. REUTERS/Ed Jones/Pool 

South Korea's President Park Geun-hye shakes hands after her speech at the presidential Blue House in Seoul August 6, 2015. Park called on Thursday for "major sugery" on the economy, which faces slowing growth and increasing challenges as she approaches the half-way point of her single five-year term. REUTERS/Ed Jones/Pool 

China's Ambassador Cui Tiankai (L-R), U.K. Ambassador Peter Westmacott and Russia's Ambassador Sergey Kislyak, all representing P5+1 countries, wait for U.S. President Barack Obama to take the stage to deliver remarks on a nuclear deal with Iran at American University in Washington August 5, 2015. President Barack Obama defended the Iran nuclear deal on Wednesday against a furious lobbying effort by political opponents and Israel and said abandoning the agreement would open up the prospect of war. Obama called the agreement, involving the United States, Russia, China, Britain, France, Germany and Iran following unprecedented international sanctions was "the strongest non-proliferation agreement ever negotiated." REUTERS/Jonathan Ernst 

Germany's Charge d’Affaires Philipp Ackermann (from L-2nd R), France's Charge d’Affaires Frederic Dore, China's Ambassador Cui Tiankai, U.K. Ambassador Peter Westmacott and Russia's Ambassador Sergey Kislyak, all representing P5+1 countries, applaud as U.S. President Barack Obama takes the stage to deliver remarks on a nuclear deal with Iran at American University in Washington August 5, 2015. President Barack Obama defended the Iran nuclear deal on Wednesday against a furious lobbying effort by political opponents and Israel and said abandoning the agreement would open up the prospect of war. Obama called the agreement, involving the United States, Russia, China, Britain, France, Germany and Iran following unprecedented international sanctions was "the strongest non-proliferation agreement ever negotiated." REUTERS/Jonathan Ernst 

E.U. Charge de Affaires Antonio De Lecea (L-R), France's Charge d'Affaires Frederic Dore, China's Ambassador to the U.S. Cui Tiankai, U.K. Ambassador Peter Westmacott and Russia's Ambassador Sergey Kislyak applaud after remarks by U.S. President Barack Obama on the nuclear deal with Iran at American University in Washington August 5, 2015. Obama defended the Iran nuclear deal on Wednesday against a furious lobbying effort by political opponents and Israel and said abandoning the agreement would open up the prospect of war. Obama called the agreement, involving the United States, Russia, China, Britain, France, Germany and Iran following unprecedented international sanctions was "the strongest non-proliferation agreement ever negotiated." REUTERS/Jonathan Ernst 

Delia Velculescu, the new International Monetary Fund (IMF) representative for Greece, gets into a car after a meeting at the Bank of Greece in Athens, Greece July 31, 2015. Top level contacts between Greek ministers and the heads of institutions discussing Greece's new bailout started on Friday. REUTERS/Yiannis Kourtoglou 

Hilaria Supa (R), representative of the Andean Parliament, dressed in traditional clothes, sits next to Paola Bustamante, Minister of Development and Social Inclusion, as they wait for the start of Independence Day celebrations at Congress in Lima, July 28, 2015. REUTERS/Mariana Bazo