LONDON — In a recent episode of Showtime’s hit series “Homeland,” the former C.I.A. officer Carrie Mathison is escorted by a Hezbollah militant past the wall of a fictional Syrian refugee camp covered with graffiti in Arabic.
Attentive viewers who read Arabic, however, might have noticed something awry. Among the messages spray-painted on the walls: “ ‘Homeland’ is racist,” “There is no ‘Homeland’ ” and “ ‘Homeland’ is not a show.”
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