U.S. Democratic presidential candidate Hillary Clinton speaks to the media before boarding her campaign plane at the Westchester County airport in White Plains, New York, U.S. September 19, 2016. REUTERS/Carlos Barria

Computer software pioneer John McAfee speaks with reporters outside his hotel in Miami Beach, Florida December 13, 2012. REUTERS/Joe Skipper

Floor governor Peter Giacchi (C) gives a price for Noble Midstream Partners LP, during the company's IPO on the floor of the New York Stock Exchange (NYSE) in New York City, U.S., September 15, 2016. REUTERS/Brendan McDermid

A man walks past a souvenir shop in London, Britain September 18, 2016. REUTERS/Stefan Wermuth

People walk past a souvenir shop in London, Britain September 18, 2016. REUTERS/Stefan Wermuth

People walk past a souvenir shop in London, Britain September 18, 2016. REUTERS/Stefan Wermuth

Souvenir mugs are seen outside a souvenir shop in London, Britain September 18, 2016. REUTERS/Stefan Wermuth

Executive Producers David Benioff, center left, and D.B. Weiss accept the award for Oustanding Drama Series for "Game of Thrones" with the cast and crew at the 68th Primetime Emmy Awards in Los Angeles, California, U.S., September 18, 2016. REUTERS/Mike Blake