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

People walk by the JP Morgan & Chase Co. building in New York in an October 24, 2013 file photo. REUTERS/Eric Thayer/Files

A sticker reading "Bitcoin accepted here" is displayed at the entrance of the Stadthaus town hall in Zug, Switzerland, August 30, 2016. REUTERS/Arnd Wiegmann

U.S. President Barack Obama in New York September 19, 2016. REUTERS/Kevin Lamarque

U.S. President Barack Obama walks to the lectern to speak about last Saturday's bombing in Manhattan's Chelsea neighborhood in New York September 19, 2016. REUTERS/Kevin Lamarque

Law enforcement officers search an address during an investigation into Ahmad Khan Rahami, who was wanted for questioning in an explosion in New York, which authorities believe is linked to the explosive devices found in New Jersey, in Elizabeth, U.S., September 19, 2016. REUTERS/Eduardo Munoz

A sticker reading "Bitcoin accepted here" is displayed at the entrance of the Stadthaus town hall in Zug, Switzerland, August 30, 2016. REUTERS/Arnd Wiegmann