U.S. President Barack Obama meets with Iraqi Prime Minister Haider al-Abadi in New York September 19, 2016. REUTERS/Kevin Lamarque

U.S. President Barack Obama meets with Iraqi Prime Minister Haider al-Abadi in New York September 19, 2016. REUTERS/Kevin Lamarque

Turkish President Tayyip Erdogan addresses governors during a meeting in Ankara, Turkey, September 8, 2016. Yasin Bulbul/Presidential Palace/Handout via REUTERS

A prototype of Google's own self-driving vehicle is seen during a media preview of Google's current autonomous vehicles in Mountain View, California September 29, 2015. REUTERS/Elijah Nouvelage

The rear of a Lexus SUV equipped with Google self-driving sensors is seen during a media preview of Google's prototype autonomous vehicles in Mountain View, California September 29, 2015. REUTERS/Elijah Nouvelage

The Deutsche Bank headquarters are seen in Frankfurt, Germany October 29, 2015. REUTERS/Kai Pfaffenbach/File Photo

A model presents a creation at the Burberry catwalk show during London Fashion Week Spring/Summer 2017 in London, Britain September 19, 2016. REUTERS/Neil Hall

A model presents a creation at the OSMAN catwalk show during London Fashion Week Spring/Summer 2017 in London, Britain September 19, 2016. REUTERS/Neil Hall