Delegations of Swiss President Johann Schneider-Ammann and European Commission President Jean-Claude Juncker meet in Zurich, Switzerland September 19, 2016. REUTERS/Ruben Sprich

Swiss President Johann Schneider-Ammann and European Commission President Jean-Claude Juncker attend a news conference in Zurich, Switzerland September 19, 2016. REUTERS/Ruben Sprich

Swiss President Johann Schneider-Ammann and European Commission President Jean-Claude Juncker attend a news conference in Zurich, Switzerland September 19, 2016. REUTERS/Ruben Sprich

The logo of the Unilever group is seen at the Miko factory in Saint-Dizier, France, May 4, 2016. REUTERS/Philippe Wojazer/File Photo

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