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Paul Duan, founder of Bayes Impact, a non profit NGO, poses at their French headquarters in Paris, France, December 20, 2016. REUTERS/Christian Hartmann

Paul Duan, founder of Bayes Impact, a non profit NGO, poses at their French headquarters in Paris, France, December 20, 2016. REUTERS/Christian Hartmann

Paul Duan, founder of Bayes Impact, a non profit NGO, poses at their French headquarters in Paris, France, December 20, 2016. REUTERS/Christian Hartmann

Paul Duan, founder of Bayes Impact, a non profit NGO, poses at their French headquarters in Paris, France, December 20, 2016. REUTERS/Christian Hartmann

Paul Duan, founder of Bayes Impact, a non profit NGO, poses at their French headquarters in Paris, France, December 20, 2016. REUTERS/Christian Hartmann

Paul Duan, founder of Bayes Impact, a non profit NGO, poses at their French headquarters in Paris, France, December 20, 2016. REUTERS/Christian Hartmann

Red Crescent members hold hands while rebel fighters and civilians wait to be evacuated from a rebel-held sector of eastern Aleppo, Syria December 18, 2016. Picture taken December 18, 2016. REUTERS/Abdalrhman Ismail TPX IMAGES OF THE DAY

Chairman of AXS TV and owner of the Dallas Mavericks Mark Cuban jokingly makes a face before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chief Executive Officer of AT&T Randall Stephenson testifies before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chief Executive Officer of AT&T Randall Stephenson testifies before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes testifies before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes testifies before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chief Executive Officer of AT&T Randall Stephenson testifies before the Senate Judiciary Committee Antitrust Subcommittee during a hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chief Executive Officer of AT&T Randall Stephenson testifies before the Senate Judiciary Committee Antitrust Subcommittee during a hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes (R) and Chief Executive Officer of AT&T Randall Stephenson listen to testimony before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes testifies before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman of AXS TV and owner of the Dallas Mavericks Mark Cuban testifies before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes listens to testimony before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chief Executive Officer of AT&T Randall Stephenson (L) and Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes listen to testimony before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chief Executive Officer of AT&T Randall Stephenson (L) and Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes testify before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of AT&T Randall Stephenson (L), Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes (C) and Chairman of AXS TV and owner of the Dallas Mavericks Mark Cuban are sworn in before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts TPX IMAGES OF THE DAY

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes listens to testimony before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chief Executive Officer of AT&T Randall Stephenson (L) speaks as Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes listens during testimony before the Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes (R) listens as Chairman and Chief Executive Officer of AT&T Randall Stephenson speaks before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of AT&T Randall Stephenson (L), Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes (C) and Chairman of AXS TV and owner of the Dallas Mavericks Mark Cuban are sworn in before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes (L) speaks with Chairman and Chief Executive Officer of AT&T Randall Stephenson before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes (L) speaks with Chairman and Chief Executive Officer of AT&T Randall Stephenson before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes (L) and Chairman of AXS TV and owner of the Dallas Mavericks Mark Cuban greet Senator Charles Grassley (R-IA) before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of AT&T Randall Stephenson arrives to testify before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman of AXS TV and owner of the Dallas Mavericks Mark Cuban (L) greets Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes (L) speaks with Chairman of AXS TV and owner of the Dallas Mavericks Mark Cuban before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of AT&T Randall Stephenson (L) speaks with Chairman of AXS TV and owner of the Dallas Mavericks Mark Cuban before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

Chairman and Chief Executive Officer of Time Warner Jeffrey Bewkes (L) speaks with Chairman and Chief Executive Officer of AT&T Randall Stephenson before a Senate Judiciary Committee Antitrust Subcommittee hearing on the proposed deal between AT&T and Time Warner in Washington, U.S., December 7, 2016. REUTERS/Joshua Roberts

International Committee of the Red Cross (ICRC) President Peter Maurer attends a news conference to launch the survey "People on War" in Geneva, Switzerland, December 5, 2016. REUTERS/Denis Balibouse

International Committee of the Red Cross (ICRC) President Peter Maurer attends a news conference to launch the survey "People on War" in Geneva, Switzerland, December 5, 2016. REUTERS/Denis Balibouse

International Committee of the Red Cross (ICRC) President Peter Maurer attends a news conference to launch the survey "People on War" in Geneva, Switzerland, December 5, 2016. REUTERS/Denis Balibouse

International Committee of the Red Cross (ICRC) President Peter Maurer attends a news conference to launch the survey "People on War" in Geneva, Switzerland, December 5, 2016. REUTERS/Denis Balibouse

International Committee of the Red Cross (ICRC) President Peter Maurer attends a news conference to launch the survey "People on War" in Geneva, Switzerland, December 5, 2016. REUTERS/Denis Balibouse

Actor Chris O'Donnell and his wife Caroline Fentress arrive for the Kennedy Center Honors in Washington, U.S. December 4, 2016. REUTERS/Joshua Roberts

Stephan A. Schwarzman, chairman and CEO of the Blackstone Group (L), and his wife Christine pose for photographers at the 2016 Kennedy Center Honors as they arrive for a gala dinner at the U.S. State Department, in Washington, U.S., December 3, 2016. REUTERS/Mike Theiler

Dominik Stillhart, Director of Operations for the International Committee of the Red Cross (ICRC), gestures during an interview with Reuters in Geneva, Switzerland, December 1, 2016. REUTERS/Denis Balibouse

Dominik Stillhart, Director of Operations for the International Committee of the Red Cross (ICRC), gestures during an interview with Reuters in Geneva, Switzerland, December 1, 2016. REUTERS/Denis Balibouse

Dominik Stillhart, Director of Operations for the International Committee of the Red Cross (ICRC), gestures during an interview with Reuters in Geneva, Switzerland, December 1, 2016. REUTERS/Denis Balibouse

Dominik Stillhart, Director of Operations for the International Committee of the Red Cross (ICRC), gestures during an interview with Reuters in Geneva, Switzerland, December 1, 2016. REUTERS/Denis Balibouse

Dominik Stillhart, Director of Operations for the International Committee of the Red Cross (ICRC), gestures during an interview with Reuters in Geneva, Switzerland, December 1, 2016. REUTERS/Denis Balibouse

Dominik Stillhart, Director of Operations for the International Committee of the Red Cross (ICRC), gestures during an interview with Reuters in Geneva, Switzerland, December 1, 2016. REUTERS/Denis Balibouse

Syrians evacuated from eastern Aleppo, get food aid from the Syrian Red Crescent inside a shelter in government controlled Jibreen area in Aleppo, Syria November 30, 2016. REUTERS/Omar Sanadiki

Princess Charlene of Monaco arrives at the headquarters of the Monaco Red Cross in Monaco before a gift-giving event to Monaco's resident, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Princess Charlene of Monaco arrives at the headquarters of the Monaco Red Cross in Monaco before a gift-giving event to Monaco's resident, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Princess Charlene of Monaco arrives at the headquarters of the Monaco Red Cross in Monaco before a gift-giving event to Monaco's resident, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Princess Charlene of Monaco arrives at the headquarters of the Monaco Red Cross in Monaco before a gift-giving event to Monaco's resident, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Prince Albert II and Princess Charlene of Monaco pose for a family picture with refugees after a gift-giving event to Monaco's resident at the headquarters of the Monaco Red Cross in Monaco, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Prince Albert II and Princess Charlene of Monaco pose for a family picture with refugees after a gift-giving event to Monaco's resident at the headquarters of the Monaco Red Cross in Monaco, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Prince Albert II and Princess Charlene of Monaco pose for a family picture with refugees after a gift-giving event to Monaco's resident at the headquarters of the Monaco Red Cross in Monaco, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Prince Albert II (L) and Princess Charlene of Monaco leave after a family picture with refugees after a gift-giving event to Monaco's resident at the headquarters of the Monaco Red Cross in Monaco, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Prince Albert II (L) and Princess Charlene (C) of Monaco leave after a family picture with refugees after a gift-giving event to Monaco's resident at the headquarters of the Monaco Red Cross in Monaco, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Princess Charlene of Monaco poses for a family picture with refugees after a gift-giving event to Monaco's resident at the headquarters of the Monaco Red Cross in Monaco, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Princess Charlene of Monaco poses for a family picture with refugees after a gift-giving event to Monaco's resident at the headquarters of the Monaco Red Cross in Monaco, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool

Prince Albert and Princess Charlene of Monaco pose for a family picture with refugees after a gift-giving event to Monaco's resident at the headquarters of the Monaco Red Cross in Monaco, ahead of Monaco National Day November 17, 2016. REUTERS/Valery Hache/Pool