MADRID/ANKARA  Spanish public broadcaster RTVE aired a pro-Palestinian message on Saturday ahead of the Eurovision Song Contest final, defying a warning from the European Broadcasting Union (EBU) as Israel’s participation in the event sparked protests. Just before switching to the live broadcast, RTVE aired a bilingual message in Spanish and English that read: “When it comes to human rights, silence is not an option. Peace and justice for Palestine.” The message received widespread support on