Iran's artists warn US and European sanctions are affecting their work

US art symposium denied two key speakers because of US visa restrictions, while artworks prevented from leaving country Is it a bird? Is it a plane? No, it's Super Sohrab. Iran's own superman stands in front of Tehran's famous Azadi Square, the site of the country's 1979 Islamic revolution as well as the mass popular uprising of 2009. His cape is a piece of green cloth, the battle armour his own