Security cameras are seen in Times Square as preparations continue for Super Bowl XLVIII in New York January 26, 2014. REUTERS/Eric Thayer/File Photo

Kameelah Rashad participates in a rally for Muslim rights outside of the James A. Byrne Federal Courthouse in Philadelphia January 13, 2015. REUTERS/Charles Mostoller/File Photo

Protesters lock arms as they march against police brutality in Manhattan, New York, U.S., July 8, 2016. REUTERS/Bria Webb/File Photo

Greek Prime Minister Alexis Tsipras is seen during an interview on the sidelines of the United Nations General Assembly in Manhattan, New York, U.S. September 21, 2016. REUTERS/Andrew Kelly

Greek Prime Minister Alexis Tsipras poses for a portrait on the sidelines of the United Nations General Assembly in Manhattan, New York, U.S. September 21, 2016. REUTERS/Andrew Kelly

Protesters lock arms as they march against police brutality in Manhattan, New York, U.S., July 8, 2016. REUTERS/Bria Webb/File Photo

Brazilian President Michel Temer takes questions at a press conference following a luncheon hosted by the Council of the Americas in Manhattan, New York, U.S., September 21, 2016. REUTERS/Bria Webb

A man walks past a display of the Nikkei average and other market indices outside a brokerage in Tokyo, Japan April 19, 2016. REUTERS/Thomas Peter