Cartoonist Mana Neyestani talks of Iran terror
24 March 2014 Last updated at 06:31 GMT
When Iran's President Hassan Rohani came to power last year he promised change internationally and at home.
Fifteen years ago four writers and dissidents were murdered for questioning the authorities.
Cartoonist Mana Neyestani, who captured that scandal in his cartoons, now lives in Paris.
Original video produced by BBC Persian