Several Iranian state television channels were hacked yesterday, and viewers were stunned when a ten-second caption appeared on the screen reading "Death to Ayatollah Khamenei" next to a picture of Iran's supreme leader with a red "X" over his face. A man is heard shouting in the background "Salute Rajawi, death to Khamenei." An exiled opposition group called MEK claimed responsibility for the hack. A picture of opposition leaders Masoud and Miriam Rajawi, who live in Paris, appeared on Iranian screens as well, and a sound byte from one of Rajawi's speeches was used during the hack. Iranian state television...