WORRIED parents protested in Iran's capital Tehran and other cities over a wave of suspected poison attacks that have affected schoolgirls in dozens of schools, according to Iranian news agencies and social media videos. The so-far unexplained illnesses have affected hundreds of schoolgirls in recent months. Iranian officials believe the girls may have been poisoned and have blamed Tehran's enemies. The country's health minister has said the girls have suffered "mild poison" attacks and some politicians have suggested the girls could have been targeted by hardline Islamist groups opposed to girls' education. Iran's interior minister said on Saturday investigators had found "suspicious…