den enkät som PEN America gjorde i oktober 2013 http://www.pen.org/chilling-effects another 1 in 6 2013 PEN survey of American writers found una en el 2013 Literaturverband PEN http://www.pen.org/chilling-effects In 2013 http://www.pen.org/chilling-effects found PEN’s 2013 Chilling Effects https://pen.org/chilling-effects/ report a survey of American writers found recent recent “Chilling Effects,” survey found A survey conducted by PEN America Source Literaturverband PEN the chilling effect of mass surveillance Pen America conducted a survey results of this survey http://www.pen.org/chilling-effects A survey conducted by PEN America Chilling Effects revealed “Chilling Effects,” results of this survey self-censor “Chilling Effects” "Chilling Effects" one in every six writers Chilling Effects Pen America conducted a survey a 2013 study estudio late 2013 survey “Chilling Results” "Chilling Effects" Chilling Effect journalists self-censor Chilling Effect http://www.pen.org/chilling-effects PEN Source https://pen.org/chilling-effects/ 1 in 6 participants in the survey reported causing writers to self-censor found "Chilling Effects" revealed October 2013 survey of U.S. PEN members