Iraq, Iran and tension between Maliki and Sadrnote

Iraqi radical Shiite cleric Moqtada Al-Sadr is said to have been forced to visit Tehran after refusing calls by Iranian officials to stop his campaign against Iraqi PM Nouri Al-Maliki. The following 440-word report sheds light on the subject and tells what about the Iranian intervention to ease the tension between Al-Maliki and Al-Sadr and avoid armed clashes between both sides.