Employees walk along a corridor in the Infosys campus in the southern Indian city of Bangalore September 23, 2014. REUTERS/Abhishek Chinnappa

Employees work on an assembly line of Hero Motocorp during a media tour to a newly opened plant in Neemrana, in the desert Indian state of Rajasthan, October 20, 2014. REUTERS/Anindito Mukherjee

An American flag flutters in the wind next to signage for a United States Social Security Administration office in Burbank, California October 25, 2012. REUTERS/Fred Prouser

Tourists take pictures in front of a ceramic reproduction of Picasso's Guernica in the Basque town of Guernica, northern Spain, September 21, 2016. REUTERS/Vincent West

A woman walks past election posters for Basque nationalist Party (PNV) candidate, Inigo Urkullu, in the Basque town of Guernica, northern Spain, September 21, 2016. REUTERS/Vincent West

Tourists take pictures in front of the remains of the Oak of Guernica at the assembly house in the Basque town of Guernica, northern Spain, September 21, 2016 REUTERS/Vincent West

Men walk in the Pasealeku in the Basque town of Guernica, northern Spain, September 21, 2016. REUTERS/Vincent West

Men talk at the Monday market in the Basque town of Guernica, northern Spain, September 19, 2016. Picture taken September 19, 2016. REUTERS/Vincent West