The situation is particularly hard in Iran, especially for painters such as the brothers Rokni and Ramin Haerizadeh, who work in Tehran. ???I cannot show some of my art, at least on public show, here because it contains nudity and sexuality,??? said Rokni, 30. ???There are restrictions, but I can show some of this type of art privately or underground, which is what I do.??? Saatchi has bought five