Miners shout slogans in front of main gate of El Teniente copper mine during a national strike near Rancagua
Miners shout slogans in front of the main gate of El Teniente copper mine during a national strike near Rancagua city, some 100 km south of Santiago, April 9, 2013.
Protesters shout slogans in front a shop during a general strike in central Madrid March 29, 2012.