Iran’s Revolutionary Guards Corps said on Thursday it has launched a crackdown on several groups who had set up anti-Islamic and pornographic Internet sites. The announcement came after a lawyer said that young Iranian blogger jailed in Tehran’s notorious Evin prison for insulting supreme leader Ayatollah Ali Khamenei had died. The Revolutionary Guards, set up to defend the Islamic republic, said it has “dismantled several networks that had set up anti-religious, anti-revolution and obscene Internet sites.”