A man holds up a Samsung S4 smartphone against a video screen with Twitter and Facebook logos in this photo illustration taken in the central Bosnian town of Zenica, August 14, 2013. REUTERS/Dado Ruvic

Reuters
A man holds up a Samsung S4 smartphone against a video screen with Twitter and Facebook logos in this photo illustration taken in the central Bosnian town of Zenica, August 14, 2013. REUTERS/Dado Ruvic
A man holds up a Samsung S4 smartphone against a video screen with Twitter and Facebook logos in this photo illustration taken in the central Bosnian town of Zenica, August 14, 2013. REUTERS/Dado Ruvic
View Comments (0)