A staff member of nuTonomy demonstrates their self-driving taxi booking app on a mobile phone drives during its public trial in Singapore August 25, 2016. REUTERS/Edgar Su/File Photo

Canada's Prime Minister Justin Trudeau (2nd R) and his wife Sophie Gregoire Trudeau arrive at a dinner with Chinese Premier Li Keqiang (2nd L) and his wife Cheng Hong at the Canadian Museum of History in Gatineau, Quebec, Canada, September 22, 2016. REUTERS/Chris Wattie

U.S. Democratic presidential candidate Hillary Clinton in Orlando, U.S. September 21, 2016. REUTERS/Carlos Barria

Peter Galbraith Kelly (R), a senior vice president at Competitive Power Ventures, walks out of the Manhattan federal courthouse in New York, U.S., September 22, 2016. REUTERS/Bria Webb

Alain Kaloyeros (C), president of the State University of New York's Polytechnic Institute, walks out of the Manhattan federal courthouse in New York, U.S., September 22, 2016. REUTERS/Bria Webb

Alain Kaloyeros (L), president of the State University of New York's Polytechnic Institute, walks out of the Manhattan federal courthouse in New York, U.S., September 22, 2016. REUTERS/Bria Webb

Alain Kaloyeros (C), president of the State University of New York's Polytechnic Institute, walks out of the Manhattan federal courthouse in New York, U.S., September 22, 2016. REUTERS/Bria Webb

Peter Galbraith Kelly, a senior vice president at Competitive Power Ventures, walks out of the Manhattan federal courthouse in New York, U.S., September 22, 2016. REUTERS/Bria Webb